28290147280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{641791}}^1$

素因数の和:641852

約数の個数: 80

約数和(自身を含む): 71623987200

約数和(自身を除く): 43333839920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 760, 1102, 1160, 1520, 2204, 2320, 2755, 4408, 5510, 8816, 11020, 22040, 44080, 641791, 1283582, 2567164, 3208955, 5134328, 6417910, 10268656, 12194029, 12835820, 18611939, 24388058, 25671640, 37223878, 48776116, 51343280, 60970145, 74447756, 93059695, 97552232, 121940290, 148895512, 186119390, 195104464, 243880580, 297791024, 353626841, 372238780, 487761160, 707253682, 744477560, 975522320, 1414507364, 1488955120, 1768134205, 2829014728, 3536268410, 5658029456, 7072536820, 14145073640, 28290147280]

約数ペア:

[(1, 28290147280), (2, 14145073640), (4, 7072536820), (5, 5658029456), (8, 3536268410), (10, 2829014728), (16, 1768134205), (19, 1488955120), (20, 1414507364), (29, 975522320), (38, 744477560), (40, 707253682), (58, 487761160), (76, 372238780), (80, 353626841), (95, 297791024), (116, 243880580), (145, 195104464), (152, 186119390), (190, 148895512), (232, 121940290), (290, 97552232), (304, 93059695), (380, 74447756), (464, 60970145), (551, 51343280), (580, 48776116), (760, 37223878), (1102, 25671640), (1160, 24388058), (1520, 18611939), (2204, 12835820), (2320, 12194029), (2755, 10268656), (4408, 6417910), (5510, 5134328), (8816, 3208955), (11020, 2567164), (22040, 1283582), (44080, 641791)]