2008543940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{249199}}^1$

素因数の和:249252

約数の個数: 48

約数和(自身を含む): 4688947200

約数和(自身を除く): 2680403260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 249199, 498398, 996796, 1245995, 2491990, 3239587, 4983980, 6479174, 7725169, 12958348, 15450338, 16197935, 30900676, 32395870, 38625845, 64791740, 77251690, 100427197, 154503380, 200854394, 401708788, 502135985, 1004271970, 2008543940]

約数ペア:

[(1, 2008543940), (2, 1004271970), (4, 502135985), (5, 401708788), (10, 200854394), (13, 154503380), (20, 100427197), (26, 77251690), (31, 64791740), (52, 38625845), (62, 32395870), (65, 30900676), (124, 16197935), (130, 15450338), (155, 12958348), (260, 7725169), (310, 6479174), (403, 4983980), (620, 3239587), (806, 2491990), (1612, 1245995), (2015, 996796), (4030, 498398), (8060, 249199)]