385997560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{1123}}^1$

素因数の和:1808

約数の個数: 64

約数和(自身を含む): 937550880

約数和(自身を除く): 551553320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 661, 1123, 1322, 2246, 2644, 3305, 4492, 5288, 5615, 6610, 8593, 8984, 11230, 13220, 14599, 17186, 22460, 26440, 29198, 34372, 42965, 44920, 58396, 68744, 72995, 85930, 116792, 145990, 171860, 291980, 343720, 583960, 742303, 1484606, 2969212, 3711515, 5938424, 7423030, 9649939, 14846060, 19299878, 29692120, 38599756, 48249695, 77199512, 96499390, 192998780, 385997560]

約数ペア:

[(1, 385997560), (2, 192998780), (4, 96499390), (5, 77199512), (8, 48249695), (10, 38599756), (13, 29692120), (20, 19299878), (26, 14846060), (40, 9649939), (52, 7423030), (65, 5938424), (104, 3711515), (130, 2969212), (260, 1484606), (520, 742303), (661, 583960), (1123, 343720), (1322, 291980), (2246, 171860), (2644, 145990), (3305, 116792), (4492, 85930), (5288, 72995), (5615, 68744), (6610, 58396), (8593, 44920), (8984, 42965), (11230, 34372), (13220, 29198), (14599, 26440), (17186, 22460)]