71428030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 142571520

約数和(自身を除く): 71143490

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 67, 95, 134, 155, 181, 190, 310, 335, 362, 589, 670, 905, 1178, 1273, 1810, 2077, 2546, 2945, 3439, 4154, 5611, 5890, 6365, 6878, 10385, 11222, 12127, 12730, 17195, 20770, 24254, 28055, 34390, 39463, 56110, 60635, 78926, 106609, 121270, 197315, 213218, 230413, 375937, 394630, 460826, 533045, 751874, 1066090, 1152065, 1879685, 2304130, 3759370, 7142803, 14285606, 35714015, 71428030]

約数ペア:

[(1, 71428030), (2, 35714015), (5, 14285606), (10, 7142803), (19, 3759370), (31, 2304130), (38, 1879685), (62, 1152065), (67, 1066090), (95, 751874), (134, 533045), (155, 460826), (181, 394630), (190, 375937), (310, 230413), (335, 213218), (362, 197315), (589, 121270), (670, 106609), (905, 78926), (1178, 60635), (1273, 56110), (1810, 39463), (2077, 34390), (2546, 28055), (2945, 24254), (3439, 20770), (4154, 17195), (5611, 12730), (5890, 12127), (6365, 11222), (6878, 10385)]