278212932

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1393

約数の個数: 72

約数和(自身を含む): 721768320

約数和(自身を除く): 443555388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 89, 142, 178, 213, 267, 284, 356, 426, 534, 639, 801, 852, 1068, 1223, 1278, 1602, 2446, 2556, 3204, 3669, 4892, 6319, 7338, 11007, 12638, 14676, 18957, 22014, 25276, 37914, 44028, 56871, 75828, 86833, 108847, 113742, 173666, 217694, 227484, 260499, 326541, 347332, 435388, 520998, 653082, 781497, 979623, 1041996, 1306164, 1562994, 1959246, 3125988, 3918492, 7728137, 15456274, 23184411, 30912548, 46368822, 69553233, 92737644, 139106466, 278212932]

約数ペア:

[(1, 278212932), (2, 139106466), (3, 92737644), (4, 69553233), (6, 46368822), (9, 30912548), (12, 23184411), (18, 15456274), (36, 7728137), (71, 3918492), (89, 3125988), (142, 1959246), (178, 1562994), (213, 1306164), (267, 1041996), (284, 979623), (356, 781497), (426, 653082), (534, 520998), (639, 435388), (801, 347332), (852, 326541), (1068, 260499), (1223, 227484), (1278, 217694), (1602, 173666), (2446, 113742), (2556, 108847), (3204, 86833), (3669, 75828), (4892, 56871), (6319, 44028), (7338, 37914), (11007, 25276), (12638, 22014), (14676, 18957)]