31641080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 82944000

約数和(自身を除く): 51302920

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 79, 85, 95, 124, 136, 152, 155, 158, 170, 190, 248, 310, 316, 323, 340, 380, 395, 527, 589, 620, 632, 646, 680, 760, 790, 1054, 1178, 1240, 1292, 1343, 1501, 1580, 1615, 2108, 2356, 2449, 2584, 2635, 2686, 2945, 3002, 3160, 3230, 4216, 4712, 4898, 5270, 5372, 5890, 6004, 6460, 6715, 7505, 9796, 10013, 10540, 10744, 11780, 12008, 12245, 12920, 13430, 15010, 19592, 20026, 21080, 23560, 24490, 25517, 26860, 30020, 40052, 41633, 46531, 48980, 50065, 51034, 53720, 60040, 80104, 83266, 93062, 97960, 100130, 102068, 127585, 166532, 186124, 200260, 204136, 208165, 232655, 255170, 333064, 372248, 400520, 416330, 465310, 510340, 791027, 832660, 930620, 1020680, 1582054, 1665320, 1861240, 3164108, 3955135, 6328216, 7910270, 15820540, 31641080]

約数ペア:

[(1, 31641080), (2, 15820540), (4, 7910270), (5, 6328216), (8, 3955135), (10, 3164108), (17, 1861240), (19, 1665320), (20, 1582054), (31, 1020680), (34, 930620), (38, 832660), (40, 791027), (62, 510340), (68, 465310), (76, 416330), (79, 400520), (85, 372248), (95, 333064), (124, 255170), (136, 232655), (152, 208165), (155, 204136), (158, 200260), (170, 186124), (190, 166532), (248, 127585), (310, 102068), (316, 100130), (323, 97960), (340, 93062), (380, 83266), (395, 80104), (527, 60040), (589, 53720), (620, 51034), (632, 50065), (646, 48980), (680, 46531), (760, 41633), (790, 40052), (1054, 30020), (1178, 26860), (1240, 25517), (1292, 24490), (1343, 23560), (1501, 21080), (1580, 20026), (1615, 19592), (2108, 15010), (2356, 13430), (2449, 12920), (2584, 12245), (2635, 12008), (2686, 11780), (2945, 10744), (3002, 10540), (3160, 10013), (3230, 9796), (4216, 7505), (4712, 6715), (4898, 6460), (5270, 6004), (5372, 5890)]