8400070

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 18432000

約数和(自身を除く): 10031930

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 79, 98, 155, 158, 217, 245, 310, 343, 395, 434, 490, 553, 686, 790, 1085, 1106, 1519, 1715, 2170, 2449, 2765, 3038, 3430, 3871, 4898, 5530, 7595, 7742, 10633, 12245, 15190, 17143, 19355, 21266, 24490, 27097, 34286, 38710, 53165, 54194, 85715, 106330, 120001, 135485, 171430, 240002, 270970, 600005, 840007, 1200010, 1680014, 4200035, 8400070]

約数ペア:

[(1, 8400070), (2, 4200035), (5, 1680014), (7, 1200010), (10, 840007), (14, 600005), (31, 270970), (35, 240002), (49, 171430), (62, 135485), (70, 120001), (79, 106330), (98, 85715), (155, 54194), (158, 53165), (217, 38710), (245, 34286), (310, 27097), (343, 24490), (395, 21266), (434, 19355), (490, 17143), (553, 15190), (686, 12245), (790, 10633), (1085, 7742), (1106, 7595), (1519, 5530), (1715, 4898), (2170, 3871), (2449, 3430), (2765, 3038)]