221399880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{409}}^1$

素因数の和:783

約数の個数: 128

約数和(自身を含む): 719107200

約数和(自身を除く): 497707320

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, 156, 195, 260, 312, 347, 390, 409, 520, 694, 780, 818, 1041, 1227, 1388, 1560, 1636, 1735, 2045, 2082, 2454, 2776, 3272, 3470, 4090, 4164, 4511, 4908, 5205, 5317, 6135, 6940, 8180, 8328, 9022, 9816, 10410, 10634, 12270, 13533, 13880, 15951, 16360, 18044, 20820, 21268, 22555, 24540, 26585, 27066, 31902, 36088, 41640, 42536, 45110, 49080, 53170, 54132, 63804, 67665, 79755, 90220, 106340, 108264, 127608, 135330, 141923, 159510, 180440, 212680, 270660, 283846, 319020, 425769, 541320, 567692, 638040, 709615, 851538, 1135384, 1419230, 1703076, 1844999, 2128845, 2838460, 3406152, 3689998, 4257690, 5534997, 5676920, 7379996, 8515380, 9224995, 11069994, 14759992, 17030760, 18449990, 22139988, 27674985, 36899980, 44279976, 55349970, 73799960, 110699940, 221399880]

約数ペア:

[(1, 221399880), (2, 110699940), (3, 73799960), (4, 55349970), (5, 44279976), (6, 36899980), (8, 27674985), (10, 22139988), (12, 18449990), (13, 17030760), (15, 14759992), (20, 11069994), (24, 9224995), (26, 8515380), (30, 7379996), (39, 5676920), (40, 5534997), (52, 4257690), (60, 3689998), (65, 3406152), (78, 2838460), (104, 2128845), (120, 1844999), (130, 1703076), (156, 1419230), (195, 1135384), (260, 851538), (312, 709615), (347, 638040), (390, 567692), (409, 541320), (520, 425769), (694, 319020), (780, 283846), (818, 270660), (1041, 212680), (1227, 180440), (1388, 159510), (1560, 141923), (1636, 135330), (1735, 127608), (2045, 108264), (2082, 106340), (2454, 90220), (2776, 79755), (3272, 67665), (3470, 63804), (4090, 54132), (4164, 53170), (4511, 49080), (4908, 45110), (5205, 42536), (5317, 41640), (6135, 36088), (6940, 31902), (8180, 27066), (8328, 26585), (9022, 24540), (9816, 22555), (10410, 21268), (10634, 20820), (12270, 18044), (13533, 16360), (13880, 15951)]