278399220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1237}}^1$

素因数の和:1302

約数の個数: 144

約数和(自身を含む): 885179904

約数和(自身を除く): 606780684

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 31, 33, 44, 55, 60, 62, 66, 93, 110, 121, 124, 132, 155, 165, 186, 220, 242, 310, 330, 341, 363, 372, 465, 484, 605, 620, 660, 682, 726, 930, 1023, 1210, 1237, 1364, 1452, 1705, 1815, 1860, 2046, 2420, 2474, 3410, 3630, 3711, 3751, 4092, 4948, 5115, 6185, 6820, 7260, 7422, 7502, 10230, 11253, 12370, 13607, 14844, 15004, 18555, 18755, 20460, 22506, 24740, 27214, 37110, 37510, 38347, 40821, 45012, 54428, 56265, 68035, 74220, 75020, 76694, 81642, 112530, 115041, 136070, 149677, 153388, 163284, 191735, 204105, 225060, 230082, 272140, 299354, 383470, 408210, 421817, 449031, 460164, 575205, 598708, 748385, 766940, 816420, 843634, 898062, 1150410, 1265451, 1496770, 1687268, 1796124, 2109085, 2245155, 2300820, 2530902, 2993540, 4218170, 4490310, 4639987, 5061804, 6327255, 8436340, 8980620, 9279974, 12654510, 13919961, 18559948, 23199935, 25309020, 27839922, 46399870, 55679844, 69599805, 92799740, 139199610, 278399220]

約数ペア:

[(1, 278399220), (2, 139199610), (3, 92799740), (4, 69599805), (5, 55679844), (6, 46399870), (10, 27839922), (11, 25309020), (12, 23199935), (15, 18559948), (20, 13919961), (22, 12654510), (30, 9279974), (31, 8980620), (33, 8436340), (44, 6327255), (55, 5061804), (60, 4639987), (62, 4490310), (66, 4218170), (93, 2993540), (110, 2530902), (121, 2300820), (124, 2245155), (132, 2109085), (155, 1796124), (165, 1687268), (186, 1496770), (220, 1265451), (242, 1150410), (310, 898062), (330, 843634), (341, 816420), (363, 766940), (372, 748385), (465, 598708), (484, 575205), (605, 460164), (620, 449031), (660, 421817), (682, 408210), (726, 383470), (930, 299354), (1023, 272140), (1210, 230082), (1237, 225060), (1364, 204105), (1452, 191735), (1705, 163284), (1815, 153388), (1860, 149677), (2046, 136070), (2420, 115041), (2474, 112530), (3410, 81642), (3630, 76694), (3711, 75020), (3751, 74220), (4092, 68035), (4948, 56265), (5115, 54428), (6185, 45012), (6820, 40821), (7260, 38347), (7422, 37510), (7502, 37110), (10230, 27214), (11253, 24740), (12370, 22506), (13607, 20460), (14844, 18755), (15004, 18555)]