521409720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19661}}^1$

素因数の和:19705

約数の個数: 128

約数和(自身を含む): 1783736640

約数和(自身を除く): 1262326920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 780, 884, 1020, 1105, 1326, 1560, 1768, 2040, 2210, 2652, 3315, 4420, 5304, 6630, 8840, 13260, 19661, 26520, 39322, 58983, 78644, 98305, 117966, 157288, 196610, 235932, 255593, 294915, 334237, 393220, 471864, 511186, 589830, 668474, 766779, 786440, 1002711, 1022372, 1179660, 1277965, 1336948, 1533558, 1671185, 2005422, 2044744, 2359320, 2555930, 2673896, 3067116, 3342370, 3833895, 4010844, 4345081, 5013555, 5111860, 6134232, 6684740, 7667790, 8021688, 8690162, 10027110, 10223720, 13035243, 13369480, 15335580, 17380324, 20054220, 21725405, 26070486, 30671160, 34760648, 40108440, 43450810, 52140972, 65176215, 86901620, 104281944, 130352430, 173803240, 260704860, 521409720]

約数ペア:

[(1, 521409720), (2, 260704860), (3, 173803240), (4, 130352430), (5, 104281944), (6, 86901620), (8, 65176215), (10, 52140972), (12, 43450810), (13, 40108440), (15, 34760648), (17, 30671160), (20, 26070486), (24, 21725405), (26, 20054220), (30, 17380324), (34, 15335580), (39, 13369480), (40, 13035243), (51, 10223720), (52, 10027110), (60, 8690162), (65, 8021688), (68, 7667790), (78, 6684740), (85, 6134232), (102, 5111860), (104, 5013555), (120, 4345081), (130, 4010844), (136, 3833895), (156, 3342370), (170, 3067116), (195, 2673896), (204, 2555930), (221, 2359320), (255, 2044744), (260, 2005422), (312, 1671185), (340, 1533558), (390, 1336948), (408, 1277965), (442, 1179660), (510, 1022372), (520, 1002711), (663, 786440), (680, 766779), (780, 668474), (884, 589830), (1020, 511186), (1105, 471864), (1326, 393220), (1560, 334237), (1768, 294915), (2040, 255593), (2210, 235932), (2652, 196610), (3315, 157288), (4420, 117966), (5304, 98305), (6630, 78644), (8840, 58983), (13260, 39322), (19661, 26520)]