420023930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:224

約数の個数: 96

約数和(自身を含む): 859403520

約数和(自身を除く): 439379590

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 71, 85, 89, 115, 142, 170, 178, 230, 289, 355, 391, 445, 578, 710, 782, 890, 1207, 1445, 1513, 1633, 1955, 2047, 2414, 2890, 3026, 3266, 3910, 4094, 6035, 6319, 6647, 7565, 8165, 10235, 12070, 12638, 13294, 15130, 16330, 20470, 20519, 25721, 27761, 31595, 33235, 34799, 41038, 51442, 55522, 63190, 66470, 69598, 102595, 107423, 128605, 138805, 145337, 173995, 205190, 214846, 257210, 277610, 290674, 347990, 471937, 537115, 591583, 726685, 943874, 1074230, 1183166, 1453370, 1826191, 2359685, 2470729, 2957915, 3652382, 4719370, 4941458, 5915830, 9130955, 12353645, 18261910, 24707290, 42002393, 84004786, 210011965, 420023930]

約数ペア:

[(1, 420023930), (2, 210011965), (5, 84004786), (10, 42002393), (17, 24707290), (23, 18261910), (34, 12353645), (46, 9130955), (71, 5915830), (85, 4941458), (89, 4719370), (115, 3652382), (142, 2957915), (170, 2470729), (178, 2359685), (230, 1826191), (289, 1453370), (355, 1183166), (391, 1074230), (445, 943874), (578, 726685), (710, 591583), (782, 537115), (890, 471937), (1207, 347990), (1445, 290674), (1513, 277610), (1633, 257210), (1955, 214846), (2047, 205190), (2414, 173995), (2890, 145337), (3026, 138805), (3266, 128605), (3910, 107423), (4094, 102595), (6035, 69598), (6319, 66470), (6647, 63190), (7565, 55522), (8165, 51442), (10235, 41038), (12070, 34799), (12638, 33235), (13294, 31595), (15130, 27761), (16330, 25721), (20470, 20519)]