18753140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 48384000

約数和(自身を除く): 29630860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 31, 35, 58, 62, 70, 116, 124, 140, 145, 149, 155, 203, 217, 290, 298, 310, 406, 434, 580, 596, 620, 745, 812, 868, 899, 1015, 1043, 1085, 1490, 1798, 2030, 2086, 2170, 2980, 3596, 4060, 4172, 4321, 4340, 4495, 4619, 5215, 6293, 8642, 8990, 9238, 10430, 12586, 17284, 17980, 18476, 20860, 21605, 23095, 25172, 30247, 31465, 32333, 43210, 46190, 60494, 62930, 64666, 86420, 92380, 120988, 125860, 129332, 133951, 151235, 161665, 267902, 302470, 323330, 535804, 604940, 646660, 669755, 937657, 1339510, 1875314, 2679020, 3750628, 4688285, 9376570, 18753140]

約数ペア:

[(1, 18753140), (2, 9376570), (4, 4688285), (5, 3750628), (7, 2679020), (10, 1875314), (14, 1339510), (20, 937657), (28, 669755), (29, 646660), (31, 604940), (35, 535804), (58, 323330), (62, 302470), (70, 267902), (116, 161665), (124, 151235), (140, 133951), (145, 129332), (149, 125860), (155, 120988), (203, 92380), (217, 86420), (290, 64666), (298, 62930), (310, 60494), (406, 46190), (434, 43210), (580, 32333), (596, 31465), (620, 30247), (745, 25172), (812, 23095), (868, 21605), (899, 20860), (1015, 18476), (1043, 17980), (1085, 17284), (1490, 12586), (1798, 10430), (2030, 9238), (2086, 8990), (2170, 8642), (2980, 6293), (3596, 5215), (4060, 4619), (4172, 4495), (4321, 4340)]