40719760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:488

約数の個数: 80

約数和(自身を含む): 101779200

約数和(自身を除く): 61059440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 79, 80, 85, 136, 158, 170, 272, 316, 340, 379, 395, 632, 680, 758, 790, 1264, 1343, 1360, 1516, 1580, 1895, 2686, 3032, 3160, 3790, 5372, 6064, 6320, 6443, 6715, 7580, 10744, 12886, 13430, 15160, 21488, 25772, 26860, 29941, 30320, 32215, 51544, 53720, 59882, 64430, 103088, 107440, 119764, 128860, 149705, 239528, 257720, 299410, 479056, 508997, 515440, 598820, 1017994, 1197640, 2035988, 2395280, 2544985, 4071976, 5089970, 8143952, 10179940, 20359880, 40719760]

約数ペア:

[(1, 40719760), (2, 20359880), (4, 10179940), (5, 8143952), (8, 5089970), (10, 4071976), (16, 2544985), (17, 2395280), (20, 2035988), (34, 1197640), (40, 1017994), (68, 598820), (79, 515440), (80, 508997), (85, 479056), (136, 299410), (158, 257720), (170, 239528), (272, 149705), (316, 128860), (340, 119764), (379, 107440), (395, 103088), (632, 64430), (680, 59882), (758, 53720), (790, 51544), (1264, 32215), (1343, 30320), (1360, 29941), (1516, 26860), (1580, 25772), (1895, 21488), (2686, 15160), (3032, 13430), (3160, 12886), (3790, 10744), (5372, 7580), (6064, 6715), (6320, 6443)]