668836780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 1621529280

約数和(自身を除く): 952692500

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 31, 34, 46, 62, 68, 85, 89, 92, 115, 124, 155, 170, 178, 230, 310, 340, 356, 391, 445, 460, 527, 620, 713, 782, 890, 961, 1054, 1426, 1513, 1564, 1780, 1922, 1955, 2047, 2108, 2635, 2759, 2852, 3026, 3565, 3844, 3910, 4094, 4805, 5270, 5518, 6052, 7130, 7565, 7820, 8188, 9610, 10235, 10540, 11036, 12121, 13795, 14260, 15130, 16337, 19220, 20470, 22103, 24242, 27590, 30260, 32674, 34799, 40940, 44206, 46903, 48484, 55180, 60605, 63457, 65348, 69598, 81685, 85529, 88412, 93806, 110515, 121210, 126914, 139196, 163370, 171058, 173995, 187612, 221030, 234515, 242420, 253828, 317285, 326740, 342116, 347990, 375751, 427645, 442060, 469030, 634570, 695980, 751502, 855290, 938060, 1078769, 1269140, 1453993, 1503004, 1710580, 1878755, 1967167, 2157538, 2907986, 3757510, 3934334, 4315076, 5393845, 5815972, 7269965, 7515020, 7868668, 9835835, 10787690, 14539930, 19671670, 21575380, 29079860, 33441839, 39343340, 66883678, 133767356, 167209195, 334418390, 668836780]

約数ペア:

[(1, 668836780), (2, 334418390), (4, 167209195), (5, 133767356), (10, 66883678), (17, 39343340), (20, 33441839), (23, 29079860), (31, 21575380), (34, 19671670), (46, 14539930), (62, 10787690), (68, 9835835), (85, 7868668), (89, 7515020), (92, 7269965), (115, 5815972), (124, 5393845), (155, 4315076), (170, 3934334), (178, 3757510), (230, 2907986), (310, 2157538), (340, 1967167), (356, 1878755), (391, 1710580), (445, 1503004), (460, 1453993), (527, 1269140), (620, 1078769), (713, 938060), (782, 855290), (890, 751502), (961, 695980), (1054, 634570), (1426, 469030), (1513, 442060), (1564, 427645), (1780, 375751), (1922, 347990), (1955, 342116), (2047, 326740), (2108, 317285), (2635, 253828), (2759, 242420), (2852, 234515), (3026, 221030), (3565, 187612), (3844, 173995), (3910, 171058), (4094, 163370), (4805, 139196), (5270, 126914), (5518, 121210), (6052, 110515), (7130, 93806), (7565, 88412), (7820, 85529), (8188, 81685), (9610, 69598), (10235, 65348), (10540, 63457), (11036, 60605), (12121, 55180), (13795, 48484), (14260, 46903), (15130, 44206), (16337, 40940), (19220, 34799), (20470, 32674), (22103, 30260), (24242, 27590)]