639281790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53407}}^1$

素因数の和:53446

約数の個数: 96

約数和(自身を含む): 1999595520

約数和(自身を除く): 1360313730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 57, 63, 70, 90, 95, 105, 114, 126, 133, 171, 190, 210, 266, 285, 315, 342, 399, 570, 630, 665, 798, 855, 1197, 1330, 1710, 1995, 2394, 3990, 5985, 11970, 53407, 106814, 160221, 267035, 320442, 373849, 480663, 534070, 747698, 801105, 961326, 1014733, 1121547, 1602210, 1869245, 2029466, 2243094, 2403315, 3044199, 3364641, 3738490, 4806630, 5073665, 5607735, 6088398, 6729282, 7103131, 9132597, 10147330, 11215470, 14206262, 15220995, 16823205, 18265194, 21309393, 30441990, 33646410, 35515655, 42618786, 45662985, 63928179, 71031310, 91325970, 106546965, 127856358, 213093930, 319640895, 639281790]

約数ペア:

[(1, 639281790), (2, 319640895), (3, 213093930), (5, 127856358), (6, 106546965), (7, 91325970), (9, 71031310), (10, 63928179), (14, 45662985), (15, 42618786), (18, 35515655), (19, 33646410), (21, 30441990), (30, 21309393), (35, 18265194), (38, 16823205), (42, 15220995), (45, 14206262), (57, 11215470), (63, 10147330), (70, 9132597), (90, 7103131), (95, 6729282), (105, 6088398), (114, 5607735), (126, 5073665), (133, 4806630), (171, 3738490), (190, 3364641), (210, 3044199), (266, 2403315), (285, 2243094), (315, 2029466), (342, 1869245), (399, 1602210), (570, 1121547), (630, 1014733), (665, 961326), (798, 801105), (855, 747698), (1197, 534070), (1330, 480663), (1710, 373849), (1995, 320442), (2394, 267035), (3990, 160221), (5985, 106814), (11970, 53407)]