1280609820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1016357}}^1$

素因数の和:1016379

約数の個数: 72

約数和(自身を含む): 4439451744

約数和(自身を除く): 3158841924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1016357, 2032714, 3049071, 4065428, 5081785, 6098142, 7114499, 9147213, 10163570, 12196284, 14228998, 15245355, 18294426, 20327140, 21343497, 28457996, 30490710, 35572495, 36588852, 42686994, 45736065, 60981420, 64030491, 71144990, 85373988, 91472130, 106717485, 128060982, 142289980, 182944260, 213434970, 256121964, 320152455, 426869940, 640304910, 1280609820]

約数ペア:

[(1, 1280609820), (2, 640304910), (3, 426869940), (4, 320152455), (5, 256121964), (6, 213434970), (7, 182944260), (9, 142289980), (10, 128060982), (12, 106717485), (14, 91472130), (15, 85373988), (18, 71144990), (20, 64030491), (21, 60981420), (28, 45736065), (30, 42686994), (35, 36588852), (36, 35572495), (42, 30490710), (45, 28457996), (60, 21343497), (63, 20327140), (70, 18294426), (84, 15245355), (90, 14228998), (105, 12196284), (126, 10163570), (140, 9147213), (180, 7114499), (210, 6098142), (252, 5081785), (315, 4065428), (420, 3049071), (630, 2032714), (1260, 1016357)]