28118340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1021}}^1$

素因数の和:1059

約数の個数: 120

約数和(自身を含む): 93488472

約数和(自身を除く): 65370132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 255, 270, 306, 324, 340, 405, 459, 510, 540, 612, 765, 810, 918, 1020, 1021, 1377, 1530, 1620, 1836, 2042, 2295, 2754, 3060, 3063, 4084, 4590, 5105, 5508, 6126, 6885, 9180, 9189, 10210, 12252, 13770, 15315, 17357, 18378, 20420, 27540, 27567, 30630, 34714, 36756, 45945, 52071, 55134, 61260, 69428, 82701, 86785, 91890, 104142, 110268, 137835, 156213, 165402, 173570, 183780, 208284, 260355, 275670, 312426, 330804, 347140, 413505, 468639, 520710, 551340, 624852, 781065, 827010, 937278, 1041420, 1405917, 1562130, 1654020, 1874556, 2343195, 2811834, 3124260, 4686390, 5623668, 7029585, 9372780, 14059170, 28118340]

約数ペア:

[(1, 28118340), (2, 14059170), (3, 9372780), (4, 7029585), (5, 5623668), (6, 4686390), (9, 3124260), (10, 2811834), (12, 2343195), (15, 1874556), (17, 1654020), (18, 1562130), (20, 1405917), (27, 1041420), (30, 937278), (34, 827010), (36, 781065), (45, 624852), (51, 551340), (54, 520710), (60, 468639), (68, 413505), (81, 347140), (85, 330804), (90, 312426), (102, 275670), (108, 260355), (135, 208284), (153, 183780), (162, 173570), (170, 165402), (180, 156213), (204, 137835), (255, 110268), (270, 104142), (306, 91890), (324, 86785), (340, 82701), (405, 69428), (459, 61260), (510, 55134), (540, 52071), (612, 45945), (765, 36756), (810, 34714), (918, 30630), (1020, 27567), (1021, 27540), (1377, 20420), (1530, 18378), (1620, 17357), (1836, 15315), (2042, 13770), (2295, 12252), (2754, 10210), (3060, 9189), (3063, 9180), (4084, 6885), (4590, 6126), (5105, 5508)]