31420680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13781}}^1$

素因数の和:13814

約数の個数: 64

約数和(自身を含む): 99230400

約数和(自身を除く): 67809720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 13781, 27562, 41343, 55124, 68905, 82686, 110248, 137810, 165372, 206715, 261839, 275620, 330744, 413430, 523678, 551240, 785517, 826860, 1047356, 1309195, 1571034, 1653720, 2094712, 2618390, 3142068, 3927585, 5236780, 6284136, 7855170, 10473560, 15710340, 31420680]

約数ペア:

[(1, 31420680), (2, 15710340), (3, 10473560), (4, 7855170), (5, 6284136), (6, 5236780), (8, 3927585), (10, 3142068), (12, 2618390), (15, 2094712), (19, 1653720), (20, 1571034), (24, 1309195), (30, 1047356), (38, 826860), (40, 785517), (57, 551240), (60, 523678), (76, 413430), (95, 330744), (114, 275620), (120, 261839), (152, 206715), (190, 165372), (228, 137810), (285, 110248), (380, 82686), (456, 68905), (570, 55124), (760, 41343), (1140, 27562), (2280, 13781)]