90840520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 233280000

約数和(自身を除く): 142439480

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 79, 85, 89, 95, 136, 152, 158, 170, 178, 190, 316, 323, 340, 356, 380, 395, 445, 632, 646, 680, 712, 760, 790, 890, 1292, 1343, 1501, 1513, 1580, 1615, 1691, 1780, 2584, 2686, 3002, 3026, 3160, 3230, 3382, 3560, 5372, 6004, 6052, 6460, 6715, 6764, 7031, 7505, 7565, 8455, 10744, 12008, 12104, 12920, 13430, 13528, 14062, 15010, 15130, 16910, 25517, 26860, 28124, 28747, 30020, 30260, 33820, 35155, 51034, 53720, 56248, 57494, 60040, 60520, 67640, 70310, 102068, 114988, 119527, 127585, 133589, 140620, 143735, 204136, 229976, 239054, 255170, 267178, 281240, 287470, 478108, 510340, 534356, 574940, 597635, 667945, 956216, 1020680, 1068712, 1149880, 1195270, 1335890, 2271013, 2390540, 2671780, 4542026, 4781080, 5343560, 9084052, 11355065, 18168104, 22710130, 45420260, 90840520]

約数ペア:

[(1, 90840520), (2, 45420260), (4, 22710130), (5, 18168104), (8, 11355065), (10, 9084052), (17, 5343560), (19, 4781080), (20, 4542026), (34, 2671780), (38, 2390540), (40, 2271013), (68, 1335890), (76, 1195270), (79, 1149880), (85, 1068712), (89, 1020680), (95, 956216), (136, 667945), (152, 597635), (158, 574940), (170, 534356), (178, 510340), (190, 478108), (316, 287470), (323, 281240), (340, 267178), (356, 255170), (380, 239054), (395, 229976), (445, 204136), (632, 143735), (646, 140620), (680, 133589), (712, 127585), (760, 119527), (790, 114988), (890, 102068), (1292, 70310), (1343, 67640), (1501, 60520), (1513, 60040), (1580, 57494), (1615, 56248), (1691, 53720), (1780, 51034), (2584, 35155), (2686, 33820), (3002, 30260), (3026, 30020), (3160, 28747), (3230, 28124), (3382, 26860), (3560, 25517), (5372, 16910), (6004, 15130), (6052, 15010), (6460, 14062), (6715, 13528), (6764, 13430), (7031, 12920), (7505, 12104), (7565, 12008), (8455, 10744)]