420208516

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 995425200

約数和(自身を除く): 575216684

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 49, 52, 68, 89, 91, 98, 109, 119, 178, 182, 196, 218, 221, 238, 356, 364, 436, 442, 476, 623, 637, 763, 833, 884, 1157, 1246, 1274, 1417, 1513, 1526, 1547, 1666, 1853, 2314, 2492, 2548, 2834, 3026, 3052, 3094, 3332, 3706, 4361, 4628, 5341, 5668, 6052, 6188, 7412, 8099, 8722, 9701, 9919, 10591, 10682, 10829, 12971, 16198, 17444, 19402, 19669, 19838, 21182, 21364, 21658, 24089, 25942, 32396, 38804, 39338, 39676, 42364, 43316, 48178, 51884, 56693, 67907, 69433, 74137, 78676, 90797, 96356, 113386, 126113, 135814, 137683, 138866, 148274, 164917, 168623, 181594, 226772, 252226, 271628, 275366, 277732, 296548, 329834, 337246, 363188, 475349, 504452, 550732, 659668, 674492, 882791, 950698, 963781, 1154419, 1180361, 1765582, 1901396, 1927562, 2143921, 2308838, 2360722, 3531164, 3855124, 4287842, 4617676, 4721444, 6179537, 8080933, 8575684, 12359074, 15007447, 16161866, 24718148, 30014894, 32323732, 60029788, 105052129, 210104258, 420208516]

約数ペア:

[(1, 420208516), (2, 210104258), (4, 105052129), (7, 60029788), (13, 32323732), (14, 30014894), (17, 24718148), (26, 16161866), (28, 15007447), (34, 12359074), (49, 8575684), (52, 8080933), (68, 6179537), (89, 4721444), (91, 4617676), (98, 4287842), (109, 3855124), (119, 3531164), (178, 2360722), (182, 2308838), (196, 2143921), (218, 1927562), (221, 1901396), (238, 1765582), (356, 1180361), (364, 1154419), (436, 963781), (442, 950698), (476, 882791), (623, 674492), (637, 659668), (763, 550732), (833, 504452), (884, 475349), (1157, 363188), (1246, 337246), (1274, 329834), (1417, 296548), (1513, 277732), (1526, 275366), (1547, 271628), (1666, 252226), (1853, 226772), (2314, 181594), (2492, 168623), (2548, 164917), (2834, 148274), (3026, 138866), (3052, 137683), (3094, 135814), (3332, 126113), (3706, 113386), (4361, 96356), (4628, 90797), (5341, 78676), (5668, 74137), (6052, 69433), (6188, 67907), (7412, 56693), (8099, 51884), (8722, 48178), (9701, 43316), (9919, 42364), (10591, 39676), (10682, 39338), (10829, 38804), (12971, 32396), (16198, 25942), (17444, 24089), (19402, 21658), (19669, 21364), (19838, 21182)]