13268840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 36288000

約数和(自身を除く): 23019160

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 79, 85, 95, 104, 130, 136, 152, 158, 170, 190, 221, 247, 260, 316, 323, 340, 380, 395, 442, 494, 520, 632, 646, 680, 760, 790, 884, 988, 1027, 1105, 1235, 1292, 1343, 1501, 1580, 1615, 1768, 1976, 2054, 2210, 2470, 2584, 2686, 3002, 3160, 3230, 4108, 4199, 4420, 4940, 5135, 5372, 6004, 6460, 6715, 7505, 8216, 8398, 8840, 9880, 10270, 10744, 12008, 12920, 13430, 15010, 16796, 17459, 19513, 20540, 20995, 25517, 26860, 30020, 33592, 34918, 39026, 41080, 41990, 51034, 53720, 60040, 69836, 78052, 83980, 87295, 97565, 102068, 127585, 139672, 156104, 167960, 174590, 195130, 204136, 255170, 331721, 349180, 390260, 510340, 663442, 698360, 780520, 1020680, 1326884, 1658605, 2653768, 3317210, 6634420, 13268840]

約数ペア:

[(1, 13268840), (2, 6634420), (4, 3317210), (5, 2653768), (8, 1658605), (10, 1326884), (13, 1020680), (17, 780520), (19, 698360), (20, 663442), (26, 510340), (34, 390260), (38, 349180), (40, 331721), (52, 255170), (65, 204136), (68, 195130), (76, 174590), (79, 167960), (85, 156104), (95, 139672), (104, 127585), (130, 102068), (136, 97565), (152, 87295), (158, 83980), (170, 78052), (190, 69836), (221, 60040), (247, 53720), (260, 51034), (316, 41990), (323, 41080), (340, 39026), (380, 34918), (395, 33592), (442, 30020), (494, 26860), (520, 25517), (632, 20995), (646, 20540), (680, 19513), (760, 17459), (790, 16796), (884, 15010), (988, 13430), (1027, 12920), (1105, 12008), (1235, 10744), (1292, 10270), (1343, 9880), (1501, 8840), (1580, 8398), (1615, 8216), (1768, 7505), (1976, 6715), (2054, 6460), (2210, 6004), (2470, 5372), (2584, 5135), (2686, 4940), (3002, 4420), (3160, 4199), (3230, 4108)]