1209880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 3240000

約数和(自身を除く): 2030120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 149, 203, 232, 280, 290, 298, 406, 580, 596, 745, 812, 1015, 1043, 1160, 1192, 1490, 1624, 2030, 2086, 2980, 4060, 4172, 4321, 5215, 5960, 8120, 8344, 8642, 10430, 17284, 20860, 21605, 30247, 34568, 41720, 43210, 60494, 86420, 120988, 151235, 172840, 241976, 302470, 604940, 1209880]

約数ペア:

[(1, 1209880), (2, 604940), (4, 302470), (5, 241976), (7, 172840), (8, 151235), (10, 120988), (14, 86420), (20, 60494), (28, 43210), (29, 41720), (35, 34568), (40, 30247), (56, 21605), (58, 20860), (70, 17284), (116, 10430), (140, 8642), (145, 8344), (149, 8120), (203, 5960), (232, 5215), (280, 4321), (290, 4172), (298, 4060), (406, 2980), (580, 2086), (596, 2030), (745, 1624), (812, 1490), (1015, 1192), (1043, 1160)]