988890570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{123457}}^1$

素因数の和:123559

約数の個数: 48

約数和(自身を含む): 2600025480

約数和(自身を除く): 1611134910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2670, 4005, 8010, 123457, 246914, 370371, 617285, 740742, 1111113, 1234570, 1851855, 2222226, 3703710, 5555565, 10987673, 11111130, 21975346, 32963019, 54938365, 65926038, 98889057, 109876730, 164815095, 197778114, 329630190, 494445285, 988890570]

約数ペア:

[(1, 988890570), (2, 494445285), (3, 329630190), (5, 197778114), (6, 164815095), (9, 109876730), (10, 98889057), (15, 65926038), (18, 54938365), (30, 32963019), (45, 21975346), (89, 11111130), (90, 10987673), (178, 5555565), (267, 3703710), (445, 2222226), (534, 1851855), (801, 1234570), (890, 1111113), (1335, 740742), (1602, 617285), (2670, 370371), (4005, 246914), (8010, 123457)]