645149680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{5309}}^1$

素因数の和:5367

約数の個数: 120

約数和(自身を含む): 1801491840

約数和(自身を除く): 1156342160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 1085, 1240, 1519, 1736, 1960, 2170, 2480, 3038, 3472, 3920, 4340, 5309, 6076, 7595, 8680, 10618, 12152, 15190, 17360, 21236, 24304, 26545, 30380, 37163, 42472, 53090, 60760, 74326, 84944, 106180, 121520, 148652, 164579, 185815, 212360, 260141, 297304, 329158, 371630, 424720, 520282, 594608, 658316, 743260, 822895, 1040564, 1152053, 1300705, 1316632, 1486520, 1645790, 2081128, 2304106, 2601410, 2633264, 2973040, 3291580, 4162256, 4608212, 5202820, 5760265, 6583160, 8064371, 9216424, 10405640, 11520530, 13166320, 16128742, 18432848, 20811280, 23041060, 32257484, 40321855, 46082120, 64514968, 80643710, 92164240, 129029936, 161287420, 322574840, 645149680]

約数ペア:

[(1, 645149680), (2, 322574840), (4, 161287420), (5, 129029936), (7, 92164240), (8, 80643710), (10, 64514968), (14, 46082120), (16, 40321855), (20, 32257484), (28, 23041060), (31, 20811280), (35, 18432848), (40, 16128742), (49, 13166320), (56, 11520530), (62, 10405640), (70, 9216424), (80, 8064371), (98, 6583160), (112, 5760265), (124, 5202820), (140, 4608212), (155, 4162256), (196, 3291580), (217, 2973040), (245, 2633264), (248, 2601410), (280, 2304106), (310, 2081128), (392, 1645790), (434, 1486520), (490, 1316632), (496, 1300705), (560, 1152053), (620, 1040564), (784, 822895), (868, 743260), (980, 658316), (1085, 594608), (1240, 520282), (1519, 424720), (1736, 371630), (1960, 329158), (2170, 297304), (2480, 260141), (3038, 212360), (3472, 185815), (3920, 164579), (4340, 148652), (5309, 121520), (6076, 106180), (7595, 84944), (8680, 74326), (10618, 60760), (12152, 53090), (15190, 42472), (17360, 37163), (21236, 30380), (24304, 26545)]