278685420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21017}}^1$

素因数の和:21059

約数の個数: 96

約数和(自身を含む): 889818048

約数和(自身を除く): 611132628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 21017, 42034, 63051, 84068, 105085, 126102, 210170, 252204, 273221, 315255, 357289, 420340, 546442, 630510, 714578, 819663, 1071867, 1092884, 1261020, 1366105, 1429156, 1639326, 1786445, 2143734, 2732210, 3278652, 3572890, 4098315, 4287468, 4644757, 5359335, 5464420, 7145780, 8196630, 9289514, 10718670, 13934271, 16393260, 18579028, 21437340, 23223785, 27868542, 46447570, 55737084, 69671355, 92895140, 139342710, 278685420]

約数ペア:

[(1, 278685420), (2, 139342710), (3, 92895140), (4, 69671355), (5, 55737084), (6, 46447570), (10, 27868542), (12, 23223785), (13, 21437340), (15, 18579028), (17, 16393260), (20, 13934271), (26, 10718670), (30, 9289514), (34, 8196630), (39, 7145780), (51, 5464420), (52, 5359335), (60, 4644757), (65, 4287468), (68, 4098315), (78, 3572890), (85, 3278652), (102, 2732210), (130, 2143734), (156, 1786445), (170, 1639326), (195, 1429156), (204, 1366105), (221, 1261020), (255, 1092884), (260, 1071867), (340, 819663), (390, 714578), (442, 630510), (510, 546442), (663, 420340), (780, 357289), (884, 315255), (1020, 273221), (1105, 252204), (1326, 210170), (2210, 126102), (2652, 105085), (3315, 84068), (4420, 63051), (6630, 42034), (13260, 21017)]