281721180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:308

約数の個数: 192

約数和(自身を含む): 895942656

約数和(自身を除く): 614221476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 61, 62, 65, 78, 93, 122, 124, 130, 155, 156, 183, 186, 191, 195, 244, 260, 305, 310, 366, 372, 382, 390, 403, 465, 573, 610, 620, 732, 764, 780, 793, 806, 915, 930, 955, 1146, 1209, 1220, 1586, 1612, 1830, 1860, 1891, 1910, 2015, 2292, 2379, 2418, 2483, 2865, 3172, 3660, 3782, 3820, 3965, 4030, 4758, 4836, 4966, 5673, 5730, 5921, 6045, 7449, 7564, 7930, 8060, 9455, 9516, 9932, 11346, 11460, 11651, 11842, 11895, 12090, 12415, 14898, 15860, 17763, 18910, 22692, 23302, 23684, 23790, 24180, 24583, 24830, 28365, 29605, 29796, 34953, 35526, 37245, 37820, 46604, 47580, 49166, 49660, 56730, 58255, 59210, 69906, 71052, 73749, 74490, 76973, 88815, 98332, 113460, 116510, 118420, 122915, 139812, 147498, 148980, 151463, 153946, 174765, 177630, 230919, 233020, 245830, 294996, 302926, 307892, 349530, 355260, 361181, 368745, 384865, 454389, 461838, 491660, 605852, 699060, 722362, 737490, 757315, 769730, 908778, 923676, 1083543, 1154595, 1444724, 1474980, 1514630, 1539460, 1805905, 1817556, 2167086, 2271945, 2309190, 3029260, 3611810, 4334172, 4543890, 4618380, 4695353, 5417715, 7223620, 9087780, 9390706, 10835430, 14086059, 18781412, 21670860, 23476765, 28172118, 46953530, 56344236, 70430295, 93907060, 140860590, 281721180]

約数ペア:

[(1, 281721180), (2, 140860590), (3, 93907060), (4, 70430295), (5, 56344236), (6, 46953530), (10, 28172118), (12, 23476765), (13, 21670860), (15, 18781412), (20, 14086059), (26, 10835430), (30, 9390706), (31, 9087780), (39, 7223620), (52, 5417715), (60, 4695353), (61, 4618380), (62, 4543890), (65, 4334172), (78, 3611810), (93, 3029260), (122, 2309190), (124, 2271945), (130, 2167086), (155, 1817556), (156, 1805905), (183, 1539460), (186, 1514630), (191, 1474980), (195, 1444724), (244, 1154595), (260, 1083543), (305, 923676), (310, 908778), (366, 769730), (372, 757315), (382, 737490), (390, 722362), (403, 699060), (465, 605852), (573, 491660), (610, 461838), (620, 454389), (732, 384865), (764, 368745), (780, 361181), (793, 355260), (806, 349530), (915, 307892), (930, 302926), (955, 294996), (1146, 245830), (1209, 233020), (1220, 230919), (1586, 177630), (1612, 174765), (1830, 153946), (1860, 151463), (1891, 148980), (1910, 147498), (2015, 139812), (2292, 122915), (2379, 118420), (2418, 116510), (2483, 113460), (2865, 98332), (3172, 88815), (3660, 76973), (3782, 74490), (3820, 73749), (3965, 71052), (4030, 69906), (4758, 59210), (4836, 58255), (4966, 56730), (5673, 49660), (5730, 49166), (5921, 47580), (6045, 46604), (7449, 37820), (7564, 37245), (7930, 35526), (8060, 34953), (9455, 29796), (9516, 29605), (9932, 28365), (11346, 24830), (11460, 24583), (11651, 24180), (11842, 23790), (11895, 23684), (12090, 23302), (12415, 22692), (14898, 18910), (15860, 17763)]