278360460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1277}}^1$

素因数の和:1472

約数の個数: 144

約数和(自身を含む): 971320896

約数和(自身を除く): 692960436

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 173, 180, 210, 252, 315, 346, 420, 519, 630, 692, 865, 1038, 1211, 1260, 1277, 1557, 1730, 2076, 2422, 2554, 2595, 3114, 3460, 3633, 3831, 4844, 5108, 5190, 6055, 6228, 6385, 7266, 7662, 7785, 8939, 10380, 10899, 11493, 12110, 12770, 14532, 15324, 15570, 17878, 18165, 19155, 21798, 22986, 24220, 25540, 26817, 31140, 35756, 36330, 38310, 43596, 44695, 45972, 53634, 54495, 57465, 72660, 76620, 80451, 89390, 107268, 108990, 114930, 134085, 160902, 178780, 217980, 220921, 229860, 268170, 321804, 402255, 441842, 536340, 662763, 804510, 883684, 1104605, 1325526, 1546447, 1609020, 1988289, 2209210, 2651052, 3092894, 3313815, 3976578, 4418420, 4639341, 6185788, 6627630, 7732235, 7953156, 9278682, 9941445, 13255260, 13918023, 15464470, 18557364, 19882890, 23196705, 27836046, 30928940, 39765780, 46393410, 55672092, 69590115, 92786820, 139180230, 278360460]

約数ペア:

[(1, 278360460), (2, 139180230), (3, 92786820), (4, 69590115), (5, 55672092), (6, 46393410), (7, 39765780), (9, 30928940), (10, 27836046), (12, 23196705), (14, 19882890), (15, 18557364), (18, 15464470), (20, 13918023), (21, 13255260), (28, 9941445), (30, 9278682), (35, 7953156), (36, 7732235), (42, 6627630), (45, 6185788), (60, 4639341), (63, 4418420), (70, 3976578), (84, 3313815), (90, 3092894), (105, 2651052), (126, 2209210), (140, 1988289), (173, 1609020), (180, 1546447), (210, 1325526), (252, 1104605), (315, 883684), (346, 804510), (420, 662763), (519, 536340), (630, 441842), (692, 402255), (865, 321804), (1038, 268170), (1211, 229860), (1260, 220921), (1277, 217980), (1557, 178780), (1730, 160902), (2076, 134085), (2422, 114930), (2554, 108990), (2595, 107268), (3114, 89390), (3460, 80451), (3633, 76620), (3831, 72660), (4844, 57465), (5108, 54495), (5190, 53634), (6055, 45972), (6228, 44695), (6385, 43596), (7266, 38310), (7662, 36330), (7785, 35756), (8939, 31140), (10380, 26817), (10899, 25540), (11493, 24220), (12110, 22986), (12770, 21798), (14532, 19155), (15324, 18165), (15570, 17878)]