28773828

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 83865600

約数和(自身を除く): 55091772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 31, 36, 38, 46, 57, 59, 62, 69, 76, 92, 93, 114, 118, 124, 138, 171, 177, 186, 207, 228, 236, 276, 279, 342, 354, 372, 414, 437, 531, 558, 589, 684, 708, 713, 828, 874, 1062, 1116, 1121, 1178, 1311, 1357, 1426, 1748, 1767, 1829, 2124, 2139, 2242, 2356, 2622, 2714, 2852, 3363, 3534, 3658, 3933, 4071, 4278, 4484, 5244, 5301, 5428, 5487, 6417, 6726, 7068, 7316, 7866, 8142, 8556, 10089, 10602, 10974, 12213, 12834, 13452, 13547, 15732, 16284, 16461, 20178, 21204, 21948, 24426, 25668, 25783, 27094, 32922, 34751, 40356, 40641, 42067, 48852, 51566, 54188, 65844, 69502, 77349, 81282, 84134, 103132, 104253, 121923, 126201, 139004, 154698, 162564, 168268, 208506, 232047, 243846, 252402, 309396, 312759, 378603, 417012, 464094, 487692, 504804, 625518, 757206, 799273, 928188, 1251036, 1514412, 1598546, 2397819, 3197092, 4795638, 7193457, 9591276, 14386914, 28773828]

約数ペア:

[(1, 28773828), (2, 14386914), (3, 9591276), (4, 7193457), (6, 4795638), (9, 3197092), (12, 2397819), (18, 1598546), (19, 1514412), (23, 1251036), (31, 928188), (36, 799273), (38, 757206), (46, 625518), (57, 504804), (59, 487692), (62, 464094), (69, 417012), (76, 378603), (92, 312759), (93, 309396), (114, 252402), (118, 243846), (124, 232047), (138, 208506), (171, 168268), (177, 162564), (186, 154698), (207, 139004), (228, 126201), (236, 121923), (276, 104253), (279, 103132), (342, 84134), (354, 81282), (372, 77349), (414, 69502), (437, 65844), (531, 54188), (558, 51566), (589, 48852), (684, 42067), (708, 40641), (713, 40356), (828, 34751), (874, 32922), (1062, 27094), (1116, 25783), (1121, 25668), (1178, 24426), (1311, 21948), (1357, 21204), (1426, 20178), (1748, 16461), (1767, 16284), (1829, 15732), (2124, 13547), (2139, 13452), (2242, 12834), (2356, 12213), (2622, 10974), (2714, 10602), (2852, 10089), (3363, 8556), (3534, 8142), (3658, 7866), (3933, 7316), (4071, 7068), (4278, 6726), (4484, 6417), (5244, 5487), (5301, 5428)]