20249820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 67092480

約数和(自身を除く): 46842660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 191, 228, 279, 285, 310, 342, 372, 380, 382, 465, 558, 570, 573, 589, 620, 684, 764, 855, 930, 955, 1116, 1140, 1146, 1178, 1395, 1710, 1719, 1767, 1860, 1910, 2292, 2356, 2790, 2865, 2945, 3420, 3438, 3534, 3629, 3820, 5301, 5580, 5730, 5890, 5921, 6876, 7068, 7258, 8595, 8835, 10602, 10887, 11460, 11780, 11842, 14516, 17190, 17670, 17763, 18145, 21204, 21774, 23684, 26505, 29605, 32661, 34380, 35340, 35526, 36290, 43548, 53010, 53289, 54435, 59210, 65322, 71052, 72580, 88815, 106020, 106578, 108870, 112499, 118420, 130644, 163305, 177630, 213156, 217740, 224998, 266445, 326610, 337497, 355260, 449996, 532890, 562495, 653220, 674994, 1012491, 1065780, 1124990, 1349988, 1687485, 2024982, 2249980, 3374970, 4049964, 5062455, 6749940, 10124910, 20249820]

約数ペア:

[(1, 20249820), (2, 10124910), (3, 6749940), (4, 5062455), (5, 4049964), (6, 3374970), (9, 2249980), (10, 2024982), (12, 1687485), (15, 1349988), (18, 1124990), (19, 1065780), (20, 1012491), (30, 674994), (31, 653220), (36, 562495), (38, 532890), (45, 449996), (57, 355260), (60, 337497), (62, 326610), (76, 266445), (90, 224998), (93, 217740), (95, 213156), (114, 177630), (124, 163305), (155, 130644), (171, 118420), (180, 112499), (186, 108870), (190, 106578), (191, 106020), (228, 88815), (279, 72580), (285, 71052), (310, 65322), (342, 59210), (372, 54435), (380, 53289), (382, 53010), (465, 43548), (558, 36290), (570, 35526), (573, 35340), (589, 34380), (620, 32661), (684, 29605), (764, 26505), (855, 23684), (930, 21774), (955, 21204), (1116, 18145), (1140, 17763), (1146, 17670), (1178, 17190), (1395, 14516), (1710, 11842), (1719, 11780), (1767, 11460), (1860, 10887), (1910, 10602), (2292, 8835), (2356, 8595), (2790, 7258), (2865, 7068), (2945, 6876), (3420, 5921), (3438, 5890), (3534, 5730), (3629, 5580), (3820, 5301)]