642560870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:286

約数の個数: 128

約数和(自身を含む): 1437253632

約数和(自身を除く): 794692762

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 37, 53, 62, 70, 74, 106, 151, 155, 185, 217, 259, 265, 302, 310, 370, 371, 434, 518, 530, 742, 755, 1057, 1085, 1147, 1295, 1510, 1643, 1855, 1961, 2114, 2170, 2294, 2590, 3286, 3710, 3922, 4681, 5285, 5587, 5735, 8003, 8029, 8215, 9362, 9805, 10570, 11174, 11470, 11501, 13727, 16006, 16058, 16430, 19610, 23002, 23405, 27454, 27935, 32767, 39109, 40015, 40145, 46810, 55870, 56021, 57505, 60791, 65534, 68635, 78218, 80030, 80290, 112042, 115010, 121582, 137270, 163835, 173197, 195545, 248093, 280105, 296111, 303955, 327670, 346394, 391090, 425537, 496186, 560210, 592222, 607910, 851074, 865985, 1212379, 1240465, 1480555, 1731970, 1736651, 2072777, 2127685, 2424758, 2480930, 2961110, 3473302, 4145554, 4255370, 6061895, 8683255, 9179441, 10363885, 12123790, 17366510, 18358882, 20727770, 45897205, 64256087, 91794410, 128512174, 321280435, 642560870]

約数ペア:

[(1, 642560870), (2, 321280435), (5, 128512174), (7, 91794410), (10, 64256087), (14, 45897205), (31, 20727770), (35, 18358882), (37, 17366510), (53, 12123790), (62, 10363885), (70, 9179441), (74, 8683255), (106, 6061895), (151, 4255370), (155, 4145554), (185, 3473302), (217, 2961110), (259, 2480930), (265, 2424758), (302, 2127685), (310, 2072777), (370, 1736651), (371, 1731970), (434, 1480555), (518, 1240465), (530, 1212379), (742, 865985), (755, 851074), (1057, 607910), (1085, 592222), (1147, 560210), (1295, 496186), (1510, 425537), (1643, 391090), (1855, 346394), (1961, 327670), (2114, 303955), (2170, 296111), (2294, 280105), (2590, 248093), (3286, 195545), (3710, 173197), (3922, 163835), (4681, 137270), (5285, 121582), (5587, 115010), (5735, 112042), (8003, 80290), (8029, 80030), (8215, 78218), (9362, 68635), (9805, 65534), (10570, 60791), (11174, 57505), (11470, 56021), (11501, 55870), (13727, 46810), (16006, 40145), (16058, 40015), (16430, 39109), (19610, 32767), (23002, 27935), (23405, 27454)]