643446540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{953}}^1$

素因数の和:1021

約数の個数: 216

約数和(自身を含む): 2216882304

約数和(自身を除く): 1573435764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 31, 33, 36, 44, 45, 55, 60, 62, 66, 90, 93, 99, 110, 121, 124, 132, 155, 165, 180, 186, 198, 220, 242, 279, 310, 330, 341, 363, 372, 396, 465, 484, 495, 558, 605, 620, 660, 682, 726, 930, 953, 990, 1023, 1089, 1116, 1210, 1364, 1395, 1452, 1705, 1815, 1860, 1906, 1980, 2046, 2178, 2420, 2790, 2859, 3069, 3410, 3630, 3751, 3812, 4092, 4356, 4765, 5115, 5445, 5580, 5718, 6138, 6820, 7260, 7502, 8577, 9530, 10230, 10483, 10890, 11253, 11436, 12276, 14295, 15004, 15345, 17154, 18755, 19060, 20460, 20966, 21780, 22506, 28590, 29543, 30690, 31449, 33759, 34308, 37510, 41932, 42885, 45012, 52415, 56265, 57180, 59086, 61380, 62898, 67518, 75020, 85770, 88629, 94347, 104830, 112530, 115313, 118172, 125796, 135036, 147715, 157245, 168795, 171540, 177258, 188694, 209660, 225060, 230626, 265887, 295430, 314490, 324973, 337590, 345939, 354516, 377388, 443145, 461252, 471735, 531774, 576565, 590860, 628980, 649946, 675180, 691878, 886290, 943470, 974919, 1037817, 1063548, 1153130, 1299892, 1329435, 1383756, 1624865, 1729695, 1772580, 1886940, 1949838, 2075634, 2306260, 2658870, 2924757, 3249730, 3459390, 3574703, 3899676, 4151268, 4874595, 5189085, 5317740, 5849514, 6499460, 6918780, 7149406, 9749190, 10378170, 10724109, 11699028, 14298812, 14623785, 17873515, 19498380, 20756340, 21448218, 29247570, 32172327, 35747030, 42896436, 53620545, 58495140, 64344654, 71494060, 107241090, 128689308, 160861635, 214482180, 321723270, 643446540]

約数ペア:

[(1, 643446540), (2, 321723270), (3, 214482180), (4, 160861635), (5, 128689308), (6, 107241090), (9, 71494060), (10, 64344654), (11, 58495140), (12, 53620545), (15, 42896436), (18, 35747030), (20, 32172327), (22, 29247570), (30, 21448218), (31, 20756340), (33, 19498380), (36, 17873515), (44, 14623785), (45, 14298812), (55, 11699028), (60, 10724109), (62, 10378170), (66, 9749190), (90, 7149406), (93, 6918780), (99, 6499460), (110, 5849514), (121, 5317740), (124, 5189085), (132, 4874595), (155, 4151268), (165, 3899676), (180, 3574703), (186, 3459390), (198, 3249730), (220, 2924757), (242, 2658870), (279, 2306260), (310, 2075634), (330, 1949838), (341, 1886940), (363, 1772580), (372, 1729695), (396, 1624865), (465, 1383756), (484, 1329435), (495, 1299892), (558, 1153130), (605, 1063548), (620, 1037817), (660, 974919), (682, 943470), (726, 886290), (930, 691878), (953, 675180), (990, 649946), (1023, 628980), (1089, 590860), (1116, 576565), (1210, 531774), (1364, 471735), (1395, 461252), (1452, 443145), (1705, 377388), (1815, 354516), (1860, 345939), (1906, 337590), (1980, 324973), (2046, 314490), (2178, 295430), (2420, 265887), (2790, 230626), (2859, 225060), (3069, 209660), (3410, 188694), (3630, 177258), (3751, 171540), (3812, 168795), (4092, 157245), (4356, 147715), (4765, 135036), (5115, 125796), (5445, 118172), (5580, 115313), (5718, 112530), (6138, 104830), (6820, 94347), (7260, 88629), (7502, 85770), (8577, 75020), (9530, 67518), (10230, 62898), (10483, 61380), (10890, 59086), (11253, 57180), (11436, 56265), (12276, 52415), (14295, 45012), (15004, 42885), (15345, 41932), (17154, 37510), (18755, 34308), (19060, 33759), (20460, 31449), (20966, 30690), (21780, 29543), (22506, 28590)]