16800140

素因数分解:

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

素因数の和:140

約数の個数: 96

約数和(自身を含む): 43008000

約数和(自身を除く): 26207860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 79, 98, 124, 140, 155, 158, 196, 217, 245, 310, 316, 343, 395, 434, 490, 553, 620, 686, 790, 868, 980, 1085, 1106, 1372, 1519, 1580, 1715, 2170, 2212, 2449, 2765, 3038, 3430, 3871, 4340, 4898, 5530, 6076, 6860, 7595, 7742, 9796, 10633, 11060, 12245, 15190, 15484, 17143, 19355, 21266, 24490, 27097, 30380, 34286, 38710, 42532, 48980, 53165, 54194, 68572, 77420, 85715, 106330, 108388, 120001, 135485, 171430, 212660, 240002, 270970, 342860, 480004, 541940, 600005, 840007, 1200010, 1680014, 2400020, 3360028, 4200035, 8400070, 16800140]

約数ペア:

[(1, 16800140), (2, 8400070), (4, 4200035), (5, 3360028), (7, 2400020), (10, 1680014), (14, 1200010), (20, 840007), (28, 600005), (31, 541940), (35, 480004), (49, 342860), (62, 270970), (70, 240002), (79, 212660), (98, 171430), (124, 135485), (140, 120001), (155, 108388), (158, 106330), (196, 85715), (217, 77420), (245, 68572), (310, 54194), (316, 53165), (343, 48980), (395, 42532), (434, 38710), (490, 34286), (553, 30380), (620, 27097), (686, 24490), (790, 21266), (868, 19355), (980, 17143), (1085, 15484), (1106, 15190), (1372, 12245), (1519, 11060), (1580, 10633), (1715, 9796), (2170, 7742), (2212, 7595), (2449, 6860), (2765, 6076), (3038, 5530), (3430, 4898), (3871, 4340)]