28915380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1373}}^1$

素因数の和:1407

約数の個数: 120

約数和(自身を含む): 97757352

約数和(自身を除く): 68841972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1053, 1170, 1373, 1404, 1620, 1755, 2106, 2340, 2746, 3510, 4119, 4212, 5265, 5492, 6865, 7020, 8238, 10530, 12357, 13730, 16476, 17849, 20595, 21060, 24714, 27460, 35698, 37071, 41190, 49428, 53547, 61785, 71396, 74142, 82380, 89245, 107094, 111213, 123570, 148284, 160641, 178490, 185355, 214188, 222426, 247140, 267735, 321282, 356980, 370710, 444852, 481923, 535470, 556065, 642564, 741420, 803205, 963846, 1070940, 1112130, 1445769, 1606410, 1927692, 2224260, 2409615, 2891538, 3212820, 4819230, 5783076, 7228845, 9638460, 14457690, 28915380]

約数ペア:

[(1, 28915380), (2, 14457690), (3, 9638460), (4, 7228845), (5, 5783076), (6, 4819230), (9, 3212820), (10, 2891538), (12, 2409615), (13, 2224260), (15, 1927692), (18, 1606410), (20, 1445769), (26, 1112130), (27, 1070940), (30, 963846), (36, 803205), (39, 741420), (45, 642564), (52, 556065), (54, 535470), (60, 481923), (65, 444852), (78, 370710), (81, 356980), (90, 321282), (108, 267735), (117, 247140), (130, 222426), (135, 214188), (156, 185355), (162, 178490), (180, 160641), (195, 148284), (234, 123570), (260, 111213), (270, 107094), (324, 89245), (351, 82380), (390, 74142), (405, 71396), (468, 61785), (540, 53547), (585, 49428), (702, 41190), (780, 37071), (810, 35698), (1053, 27460), (1170, 24714), (1373, 21060), (1404, 20595), (1620, 17849), (1755, 16476), (2106, 13730), (2340, 12357), (2746, 10530), (3510, 8238), (4119, 7020), (4212, 6865), (5265, 5492)]