20020785800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{13399}}^1$

素因数の和:13687

約数の個数: 96

約数和(自身を含む): 48252864000

約数和(自身を除く): 28232078200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 241, 248, 310, 482, 620, 775, 964, 1205, 1240, 1550, 1928, 2410, 3100, 4820, 6025, 6200, 7471, 9640, 12050, 13399, 14942, 24100, 26798, 29884, 37355, 48200, 53596, 59768, 66995, 74710, 107192, 133990, 149420, 186775, 267980, 298840, 334975, 373550, 415369, 535960, 669950, 747100, 830738, 1339900, 1494200, 1661476, 2076845, 2679800, 3229159, 3322952, 4153690, 6458318, 8307380, 10384225, 12916636, 16145795, 16614760, 20768450, 25833272, 32291590, 41536900, 64583180, 80728975, 83073800, 100103929, 129166360, 161457950, 200207858, 322915900, 400415716, 500519645, 645831800, 800831432, 1001039290, 2002078580, 2502598225, 4004157160, 5005196450, 10010392900, 20020785800]

約数ペア:

[(1, 20020785800), (2, 10010392900), (4, 5005196450), (5, 4004157160), (8, 2502598225), (10, 2002078580), (20, 1001039290), (25, 800831432), (31, 645831800), (40, 500519645), (50, 400415716), (62, 322915900), (100, 200207858), (124, 161457950), (155, 129166360), (200, 100103929), (241, 83073800), (248, 80728975), (310, 64583180), (482, 41536900), (620, 32291590), (775, 25833272), (964, 20768450), (1205, 16614760), (1240, 16145795), (1550, 12916636), (1928, 10384225), (2410, 8307380), (3100, 6458318), (4820, 4153690), (6025, 3322952), (6200, 3229159), (7471, 2679800), (9640, 2076845), (12050, 1661476), (13399, 1494200), (14942, 1339900), (24100, 830738), (26798, 747100), (29884, 669950), (37355, 535960), (48200, 415369), (53596, 373550), (59768, 334975), (66995, 298840), (74710, 267980), (107192, 186775), (133990, 149420)]