30878120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:547

約数の個数: 128

約数和(自身を含む): 90720000

約数和(自身を除く): 59841880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 340, 364, 442, 455, 476, 499, 520, 595, 680, 728, 884, 910, 952, 998, 1105, 1190, 1547, 1768, 1820, 1996, 2210, 2380, 2495, 3094, 3493, 3640, 3992, 4420, 4760, 4990, 6188, 6487, 6986, 7735, 8483, 8840, 9980, 12376, 12974, 13972, 15470, 16966, 17465, 19960, 25948, 27944, 30940, 32435, 33932, 34930, 42415, 45409, 51896, 59381, 61880, 64870, 67864, 69860, 84830, 90818, 110279, 118762, 129740, 139720, 169660, 181636, 220558, 227045, 237524, 259480, 296905, 339320, 363272, 441116, 454090, 475048, 551395, 593810, 771953, 882232, 908180, 1102790, 1187620, 1543906, 1816360, 2205580, 2375240, 3087812, 3859765, 4411160, 6175624, 7719530, 15439060, 30878120]

約数ペア:

[(1, 30878120), (2, 15439060), (4, 7719530), (5, 6175624), (7, 4411160), (8, 3859765), (10, 3087812), (13, 2375240), (14, 2205580), (17, 1816360), (20, 1543906), (26, 1187620), (28, 1102790), (34, 908180), (35, 882232), (40, 771953), (52, 593810), (56, 551395), (65, 475048), (68, 454090), (70, 441116), (85, 363272), (91, 339320), (104, 296905), (119, 259480), (130, 237524), (136, 227045), (140, 220558), (170, 181636), (182, 169660), (221, 139720), (238, 129740), (260, 118762), (280, 110279), (340, 90818), (364, 84830), (442, 69860), (455, 67864), (476, 64870), (499, 61880), (520, 59381), (595, 51896), (680, 45409), (728, 42415), (884, 34930), (910, 33932), (952, 32435), (998, 30940), (1105, 27944), (1190, 25948), (1547, 19960), (1768, 17465), (1820, 16966), (1996, 15470), (2210, 13972), (2380, 12974), (2495, 12376), (3094, 9980), (3493, 8840), (3640, 8483), (3992, 7735), (4420, 6986), (4760, 6487), (4990, 6188)]