28640980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 68947200

約数和(自身を除く): 40306220

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 29, 38, 46, 58, 76, 92, 95, 113, 115, 116, 145, 190, 226, 230, 290, 380, 437, 452, 460, 551, 565, 580, 667, 874, 1102, 1130, 1334, 1748, 2147, 2185, 2204, 2260, 2599, 2668, 2755, 3277, 3335, 4294, 4370, 5198, 5510, 6554, 6670, 8588, 8740, 10396, 10735, 11020, 12673, 12995, 13108, 13340, 16385, 21470, 25346, 25990, 32770, 42940, 49381, 50692, 51980, 62263, 63365, 65540, 75371, 98762, 124526, 126730, 150742, 197524, 246905, 249052, 253460, 301484, 311315, 376855, 493810, 622630, 753710, 987620, 1245260, 1432049, 1507420, 2864098, 5728196, 7160245, 14320490, 28640980]

約数ペア:

[(1, 28640980), (2, 14320490), (4, 7160245), (5, 5728196), (10, 2864098), (19, 1507420), (20, 1432049), (23, 1245260), (29, 987620), (38, 753710), (46, 622630), (58, 493810), (76, 376855), (92, 311315), (95, 301484), (113, 253460), (115, 249052), (116, 246905), (145, 197524), (190, 150742), (226, 126730), (230, 124526), (290, 98762), (380, 75371), (437, 65540), (452, 63365), (460, 62263), (551, 51980), (565, 50692), (580, 49381), (667, 42940), (874, 32770), (1102, 25990), (1130, 25346), (1334, 21470), (1748, 16385), (2147, 13340), (2185, 13108), (2204, 12995), (2260, 12673), (2599, 11020), (2668, 10735), (2755, 10396), (3277, 8740), (3335, 8588), (4294, 6670), (4370, 6554), (5198, 5510)]