251158440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1229}}^1$

素因数の和:1387

約数の個数: 128

約数和(自身を含む): 818294400

約数和(自身を除く): 567135960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 131, 156, 195, 260, 262, 312, 390, 393, 520, 524, 655, 780, 786, 1048, 1229, 1310, 1560, 1572, 1703, 1965, 2458, 2620, 3144, 3406, 3687, 3930, 4916, 5109, 5240, 6145, 6812, 7374, 7860, 8515, 9832, 10218, 12290, 13624, 14748, 15720, 15977, 17030, 18435, 20436, 24580, 25545, 29496, 31954, 34060, 36870, 40872, 47931, 49160, 51090, 63908, 68120, 73740, 79885, 95862, 102180, 127816, 147480, 159770, 160999, 191724, 204360, 239655, 319540, 321998, 383448, 479310, 482997, 639080, 643996, 804995, 958620, 965994, 1287992, 1609990, 1917240, 1931988, 2092987, 2414985, 3219980, 3863976, 4185974, 4829970, 6278961, 6439960, 8371948, 9659940, 10464935, 12557922, 16743896, 19319880, 20929870, 25115844, 31394805, 41859740, 50231688, 62789610, 83719480, 125579220, 251158440]

約数ペア:

[(1, 251158440), (2, 125579220), (3, 83719480), (4, 62789610), (5, 50231688), (6, 41859740), (8, 31394805), (10, 25115844), (12, 20929870), (13, 19319880), (15, 16743896), (20, 12557922), (24, 10464935), (26, 9659940), (30, 8371948), (39, 6439960), (40, 6278961), (52, 4829970), (60, 4185974), (65, 3863976), (78, 3219980), (104, 2414985), (120, 2092987), (130, 1931988), (131, 1917240), (156, 1609990), (195, 1287992), (260, 965994), (262, 958620), (312, 804995), (390, 643996), (393, 639080), (520, 482997), (524, 479310), (655, 383448), (780, 321998), (786, 319540), (1048, 239655), (1229, 204360), (1310, 191724), (1560, 160999), (1572, 159770), (1703, 147480), (1965, 127816), (2458, 102180), (2620, 95862), (3144, 79885), (3406, 73740), (3687, 68120), (3930, 63908), (4916, 51090), (5109, 49160), (5240, 47931), (6145, 40872), (6812, 36870), (7374, 34060), (7860, 31954), (8515, 29496), (9832, 25545), (10218, 24580), (12290, 20436), (13624, 18435), (14748, 17030), (15720, 15977)]