678990420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:862

約数の個数: 144

約数和(自身を含む): 2121904512

約数和(自身を除く): 1442914092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 103, 106, 159, 180, 206, 212, 265, 309, 318, 412, 477, 515, 530, 618, 636, 691, 795, 927, 954, 1030, 1060, 1236, 1382, 1545, 1590, 1854, 1908, 2060, 2073, 2385, 2764, 3090, 3180, 3455, 3708, 4146, 4635, 4770, 5459, 6180, 6219, 6910, 8292, 9270, 9540, 10365, 10918, 12438, 13820, 16377, 18540, 20730, 21836, 24876, 27295, 31095, 32754, 36623, 41460, 49131, 54590, 62190, 65508, 71173, 73246, 81885, 98262, 109180, 109869, 124380, 142346, 146492, 163770, 183115, 196524, 213519, 219738, 245655, 284692, 327540, 329607, 355865, 366230, 427038, 439476, 491310, 549345, 640557, 659214, 711730, 732460, 854076, 982620, 1067595, 1098690, 1281114, 1318428, 1423460, 1648035, 2135190, 2197380, 2562228, 3202785, 3296070, 3772169, 4270380, 6405570, 6592140, 7544338, 11316507, 12811140, 15088676, 18860845, 22633014, 33949521, 37721690, 45266028, 56582535, 67899042, 75443380, 113165070, 135798084, 169747605, 226330140, 339495210, 678990420]

約数ペア:

[(1, 678990420), (2, 339495210), (3, 226330140), (4, 169747605), (5, 135798084), (6, 113165070), (9, 75443380), (10, 67899042), (12, 56582535), (15, 45266028), (18, 37721690), (20, 33949521), (30, 22633014), (36, 18860845), (45, 15088676), (53, 12811140), (60, 11316507), (90, 7544338), (103, 6592140), (106, 6405570), (159, 4270380), (180, 3772169), (206, 3296070), (212, 3202785), (265, 2562228), (309, 2197380), (318, 2135190), (412, 1648035), (477, 1423460), (515, 1318428), (530, 1281114), (618, 1098690), (636, 1067595), (691, 982620), (795, 854076), (927, 732460), (954, 711730), (1030, 659214), (1060, 640557), (1236, 549345), (1382, 491310), (1545, 439476), (1590, 427038), (1854, 366230), (1908, 355865), (2060, 329607), (2073, 327540), (2385, 284692), (2764, 245655), (3090, 219738), (3180, 213519), (3455, 196524), (3708, 183115), (4146, 163770), (4635, 146492), (4770, 142346), (5459, 124380), (6180, 109869), (6219, 109180), (6910, 98262), (8292, 81885), (9270, 73246), (9540, 71173), (10365, 65508), (10918, 62190), (12438, 54590), (13820, 49131), (16377, 41460), (18540, 36623), (20730, 32754), (21836, 31095), (24876, 27295)]