2653980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 8709120

約数和(自身を除く): 6055140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 89, 105, 140, 142, 178, 210, 213, 267, 284, 355, 356, 420, 426, 445, 497, 534, 623, 710, 852, 890, 994, 1065, 1068, 1246, 1335, 1420, 1491, 1780, 1869, 1988, 2130, 2485, 2492, 2670, 2982, 3115, 3738, 4260, 4970, 5340, 5964, 6230, 6319, 7455, 7476, 9345, 9940, 12460, 12638, 14910, 18690, 18957, 25276, 29820, 31595, 37380, 37914, 44233, 63190, 75828, 88466, 94785, 126380, 132699, 176932, 189570, 221165, 265398, 379140, 442330, 530796, 663495, 884660, 1326990, 2653980]

約数ペア:

[(1, 2653980), (2, 1326990), (3, 884660), (4, 663495), (5, 530796), (6, 442330), (7, 379140), (10, 265398), (12, 221165), (14, 189570), (15, 176932), (20, 132699), (21, 126380), (28, 94785), (30, 88466), (35, 75828), (42, 63190), (60, 44233), (70, 37914), (71, 37380), (84, 31595), (89, 29820), (105, 25276), (140, 18957), (142, 18690), (178, 14910), (210, 12638), (213, 12460), (267, 9940), (284, 9345), (355, 7476), (356, 7455), (420, 6319), (426, 6230), (445, 5964), (497, 5340), (534, 4970), (623, 4260), (710, 3738), (852, 3115), (890, 2982), (994, 2670), (1065, 2492), (1068, 2485), (1246, 2130), (1335, 1988), (1420, 1869), (1491, 1780)]