402019940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:481

約数の個数: 96

約数和(自身を含む): 987463680

約数和(自身を除く): 585443740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 163, 223, 316, 326, 395, 446, 553, 652, 790, 815, 892, 1106, 1115, 1141, 1561, 1580, 1630, 2212, 2230, 2282, 2765, 3122, 3260, 4460, 4564, 5530, 5705, 6244, 7805, 11060, 11410, 12877, 15610, 17617, 22820, 25754, 31220, 35234, 36349, 51508, 64385, 70468, 72698, 88085, 90139, 123319, 128770, 145396, 176170, 180278, 181745, 246638, 254443, 257540, 352340, 360556, 363490, 450695, 493276, 508886, 616595, 726980, 901390, 1017772, 1233190, 1272215, 1802780, 2466380, 2544430, 2871571, 5088860, 5743142, 11486284, 14357855, 20100997, 28715710, 40201994, 57431420, 80403988, 100504985, 201009970, 402019940]

約数ペア:

[(1, 402019940), (2, 201009970), (4, 100504985), (5, 80403988), (7, 57431420), (10, 40201994), (14, 28715710), (20, 20100997), (28, 14357855), (35, 11486284), (70, 5743142), (79, 5088860), (140, 2871571), (158, 2544430), (163, 2466380), (223, 1802780), (316, 1272215), (326, 1233190), (395, 1017772), (446, 901390), (553, 726980), (652, 616595), (790, 508886), (815, 493276), (892, 450695), (1106, 363490), (1115, 360556), (1141, 352340), (1561, 257540), (1580, 254443), (1630, 246638), (2212, 181745), (2230, 180278), (2282, 176170), (2765, 145396), (3122, 128770), (3260, 123319), (4460, 90139), (4564, 88085), (5530, 72698), (5705, 70468), (6244, 64385), (7805, 51508), (11060, 36349), (11410, 35234), (12877, 31220), (15610, 25754), (17617, 22820)]