220289720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{619}}^1$

素因数の和:709

約数の個数: 128

約数和(自身を含む): 599961600

約数和(自身を除く): 379671880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 41, 56, 62, 70, 82, 124, 140, 155, 164, 205, 217, 248, 280, 287, 310, 328, 410, 434, 574, 619, 620, 820, 868, 1085, 1148, 1238, 1240, 1271, 1435, 1640, 1736, 2170, 2296, 2476, 2542, 2870, 3095, 4333, 4340, 4952, 5084, 5740, 6190, 6355, 8666, 8680, 8897, 10168, 11480, 12380, 12710, 17332, 17794, 19189, 21665, 24760, 25379, 25420, 34664, 35588, 38378, 43330, 44485, 50758, 50840, 71176, 76756, 86660, 88970, 95945, 101516, 126895, 134323, 153512, 173320, 177653, 177940, 191890, 203032, 253790, 268646, 355306, 355880, 383780, 507580, 537292, 671615, 710612, 767560, 786749, 888265, 1015160, 1074584, 1343230, 1421224, 1573498, 1776530, 2686460, 3146996, 3553060, 3933745, 5372920, 5507243, 6293992, 7106120, 7867490, 11014486, 15734980, 22028972, 27536215, 31469960, 44057944, 55072430, 110144860, 220289720]

約数ペア:

[(1, 220289720), (2, 110144860), (4, 55072430), (5, 44057944), (7, 31469960), (8, 27536215), (10, 22028972), (14, 15734980), (20, 11014486), (28, 7867490), (31, 7106120), (35, 6293992), (40, 5507243), (41, 5372920), (56, 3933745), (62, 3553060), (70, 3146996), (82, 2686460), (124, 1776530), (140, 1573498), (155, 1421224), (164, 1343230), (205, 1074584), (217, 1015160), (248, 888265), (280, 786749), (287, 767560), (310, 710612), (328, 671615), (410, 537292), (434, 507580), (574, 383780), (619, 355880), (620, 355306), (820, 268646), (868, 253790), (1085, 203032), (1148, 191890), (1238, 177940), (1240, 177653), (1271, 173320), (1435, 153512), (1640, 134323), (1736, 126895), (2170, 101516), (2296, 95945), (2476, 88970), (2542, 86660), (2870, 76756), (3095, 71176), (4333, 50840), (4340, 50758), (4952, 44485), (5084, 43330), (5740, 38378), (6190, 35588), (6355, 34664), (8666, 25420), (8680, 25379), (8897, 24760), (10168, 21665), (11480, 19189), (12380, 17794), (12710, 17332)]