1780890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 64

約数和(自身を含む): 4665600

約数和(自身を除く): 2884710

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 29, 30, 46, 58, 69, 87, 89, 115, 138, 145, 174, 178, 230, 267, 290, 345, 435, 445, 534, 667, 690, 870, 890, 1334, 1335, 2001, 2047, 2581, 2670, 3335, 4002, 4094, 5162, 6141, 6670, 7743, 10005, 10235, 12282, 12905, 15486, 20010, 20470, 25810, 30705, 38715, 59363, 61410, 77430, 118726, 178089, 296815, 356178, 593630, 890445, 1780890]

約数ペア:

[(1, 1780890), (2, 890445), (3, 593630), (5, 356178), (6, 296815), (10, 178089), (15, 118726), (23, 77430), (29, 61410), (30, 59363), (46, 38715), (58, 30705), (69, 25810), (87, 20470), (89, 20010), (115, 15486), (138, 12905), (145, 12282), (174, 10235), (178, 10005), (230, 7743), (267, 6670), (290, 6141), (345, 5162), (435, 4094), (445, 4002), (534, 3335), (667, 2670), (690, 2581), (870, 2047), (890, 2001), (1334, 1335)]