31115320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1$

素因数の和:1156

約数の個数: 64

約数和(自身を含む): 75479040

約数和(自身を除く): 44363720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 920, 1091, 1240, 1426, 2182, 2852, 3565, 4364, 5455, 5704, 7130, 8728, 10910, 14260, 21820, 25093, 28520, 33821, 43640, 50186, 67642, 100372, 125465, 135284, 169105, 200744, 250930, 270568, 338210, 501860, 676420, 777883, 1003720, 1352840, 1555766, 3111532, 3889415, 6223064, 7778830, 15557660, 31115320]

約数ペア:

[(1, 31115320), (2, 15557660), (4, 7778830), (5, 6223064), (8, 3889415), (10, 3111532), (20, 1555766), (23, 1352840), (31, 1003720), (40, 777883), (46, 676420), (62, 501860), (92, 338210), (115, 270568), (124, 250930), (155, 200744), (184, 169105), (230, 135284), (248, 125465), (310, 100372), (460, 67642), (620, 50186), (713, 43640), (920, 33821), (1091, 28520), (1240, 25093), (1426, 21820), (2182, 14260), (2852, 10910), (3565, 8728), (4364, 7130), (5455, 5704)]