20149653880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1\times {\mathrm{7829}}^1$

素因数の和:7961

約数の個数: 96

約数和(自身を含む): 47592619200

約数和(自身を除く): 27442965320

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 235, 296, 370, 376, 470, 740, 940, 1369, 1480, 1739, 1880, 2738, 3478, 5476, 6845, 6956, 7829, 8695, 10952, 13690, 13912, 15658, 17390, 27380, 31316, 34780, 39145, 54760, 62632, 64343, 69560, 78290, 128686, 156580, 257372, 289673, 313160, 321715, 367963, 514744, 579346, 643430, 735926, 1158692, 1286860, 1448365, 1471852, 1839815, 2317384, 2573720, 2896730, 2943704, 3679630, 5793460, 7359260, 10717901, 11586920, 13614631, 14718520, 21435802, 27229262, 42871604, 53589505, 54458524, 68073155, 85743208, 107179010, 108917048, 136146310, 214358020, 272292620, 428716040, 503741347, 544585240, 1007482694, 2014965388, 2518706735, 4029930776, 5037413470, 10074826940, 20149653880]

約数ペア:

[(1, 20149653880), (2, 10074826940), (4, 5037413470), (5, 4029930776), (8, 2518706735), (10, 2014965388), (20, 1007482694), (37, 544585240), (40, 503741347), (47, 428716040), (74, 272292620), (94, 214358020), (148, 136146310), (185, 108917048), (188, 107179010), (235, 85743208), (296, 68073155), (370, 54458524), (376, 53589505), (470, 42871604), (740, 27229262), (940, 21435802), (1369, 14718520), (1480, 13614631), (1739, 11586920), (1880, 10717901), (2738, 7359260), (3478, 5793460), (5476, 3679630), (6845, 2943704), (6956, 2896730), (7829, 2573720), (8695, 2317384), (10952, 1839815), (13690, 1471852), (13912, 1448365), (15658, 1286860), (17390, 1158692), (27380, 735926), (31316, 643430), (34780, 579346), (39145, 514744), (54760, 367963), (62632, 321715), (64343, 313160), (69560, 289673), (78290, 257372), (128686, 156580)]