31408520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:88

約数の個数: 192

約数和(自身を含む): 92836800

約数和(自身を除く): 61428280

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 17, 19, 20, 22, 26, 34, 38, 40, 44, 52, 55, 65, 68, 76, 85, 88, 95, 104, 110, 130, 136, 143, 152, 170, 187, 190, 209, 220, 221, 247, 260, 286, 289, 323, 340, 374, 380, 418, 440, 442, 494, 520, 572, 578, 646, 680, 715, 748, 760, 836, 884, 935, 988, 1045, 1105, 1144, 1156, 1235, 1292, 1430, 1445, 1496, 1615, 1672, 1768, 1870, 1976, 2090, 2210, 2312, 2431, 2470, 2584, 2717, 2860, 2890, 3179, 3230, 3553, 3740, 3757, 4180, 4199, 4420, 4862, 4940, 5434, 5491, 5720, 5780, 6358, 6460, 7106, 7480, 7514, 8360, 8398, 8840, 9724, 9880, 10868, 10982, 11560, 12155, 12716, 12920, 13585, 14212, 15028, 15895, 16796, 17765, 18785, 19448, 20995, 21736, 21964, 24310, 25432, 27170, 27455, 28424, 30056, 31790, 33592, 35530, 37570, 41327, 41990, 43928, 46189, 48620, 54340, 54910, 60401, 63580, 71060, 71383, 75140, 82654, 83980, 92378, 97240, 108680, 109820, 120802, 127160, 142120, 142766, 150280, 165308, 167960, 184756, 206635, 219640, 230945, 241604, 285532, 302005, 330616, 356915, 369512, 413270, 461890, 483208, 571064, 604010, 713830, 785213, 826540, 923780, 1208020, 1427660, 1570426, 1653080, 1847560, 2416040, 2855320, 3140852, 3926065, 6281704, 7852130, 15704260, 31408520]

約数ペア:

[(1, 31408520), (2, 15704260), (4, 7852130), (5, 6281704), (8, 3926065), (10, 3140852), (11, 2855320), (13, 2416040), (17, 1847560), (19, 1653080), (20, 1570426), (22, 1427660), (26, 1208020), (34, 923780), (38, 826540), (40, 785213), (44, 713830), (52, 604010), (55, 571064), (65, 483208), (68, 461890), (76, 413270), (85, 369512), (88, 356915), (95, 330616), (104, 302005), (110, 285532), (130, 241604), (136, 230945), (143, 219640), (152, 206635), (170, 184756), (187, 167960), (190, 165308), (209, 150280), (220, 142766), (221, 142120), (247, 127160), (260, 120802), (286, 109820), (289, 108680), (323, 97240), (340, 92378), (374, 83980), (380, 82654), (418, 75140), (440, 71383), (442, 71060), (494, 63580), (520, 60401), (572, 54910), (578, 54340), (646, 48620), (680, 46189), (715, 43928), (748, 41990), (760, 41327), (836, 37570), (884, 35530), (935, 33592), (988, 31790), (1045, 30056), (1105, 28424), (1144, 27455), (1156, 27170), (1235, 25432), (1292, 24310), (1430, 21964), (1445, 21736), (1496, 20995), (1615, 19448), (1672, 18785), (1768, 17765), (1870, 16796), (1976, 15895), (2090, 15028), (2210, 14212), (2312, 13585), (2431, 12920), (2470, 12716), (2584, 12155), (2717, 11560), (2860, 10982), (2890, 10868), (3179, 9880), (3230, 9724), (3553, 8840), (3740, 8398), (3757, 8360), (4180, 7514), (4199, 7480), (4420, 7106), (4862, 6460), (4940, 6358), (5434, 5780), (5491, 5720)]