31686340

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 80640000

約数和(自身を除く): 48953660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 149, 155, 196, 217, 245, 298, 310, 343, 434, 490, 596, 620, 686, 745, 868, 980, 1043, 1085, 1372, 1490, 1519, 1715, 2086, 2170, 2980, 3038, 3430, 4172, 4340, 4619, 5215, 6076, 6860, 7301, 7595, 9238, 10430, 10633, 14602, 15190, 18476, 20860, 21266, 23095, 29204, 30380, 32333, 36505, 42532, 46190, 51107, 53165, 64666, 73010, 92380, 102214, 106330, 129332, 146020, 161665, 204428, 212660, 226331, 255535, 323330, 452662, 511070, 646660, 905324, 1022140, 1131655, 1584317, 2263310, 3168634, 4526620, 6337268, 7921585, 15843170, 31686340]

約数ペア:

[(1, 31686340), (2, 15843170), (4, 7921585), (5, 6337268), (7, 4526620), (10, 3168634), (14, 2263310), (20, 1584317), (28, 1131655), (31, 1022140), (35, 905324), (49, 646660), (62, 511070), (70, 452662), (98, 323330), (124, 255535), (140, 226331), (149, 212660), (155, 204428), (196, 161665), (217, 146020), (245, 129332), (298, 106330), (310, 102214), (343, 92380), (434, 73010), (490, 64666), (596, 53165), (620, 51107), (686, 46190), (745, 42532), (868, 36505), (980, 32333), (1043, 30380), (1085, 29204), (1372, 23095), (1490, 21266), (1519, 20860), (1715, 18476), (2086, 15190), (2170, 14602), (2980, 10633), (3038, 10430), (3430, 9238), (4172, 7595), (4340, 7301), (4619, 6860), (5215, 6076)]