28290990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:314

約数の個数: 128

約数和(自身を含む): 85865472

約数和(自身を除く): 57574482

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 43, 65, 70, 78, 86, 91, 105, 129, 130, 182, 195, 210, 215, 241, 258, 273, 301, 390, 430, 455, 482, 546, 559, 602, 645, 723, 903, 910, 1118, 1205, 1290, 1365, 1446, 1505, 1677, 1687, 1806, 2410, 2730, 2795, 3010, 3133, 3354, 3374, 3615, 3913, 4515, 5061, 5590, 6266, 7230, 7826, 8385, 8435, 9030, 9399, 10122, 10363, 11739, 15665, 16770, 16870, 18798, 19565, 20726, 21931, 23478, 25305, 31089, 31330, 39130, 43862, 46995, 50610, 51815, 58695, 62178, 65793, 72541, 93990, 103630, 109655, 117390, 131586, 134719, 145082, 155445, 217623, 219310, 269438, 310890, 328965, 362705, 404157, 435246, 657930, 673595, 725410, 808314, 943033, 1088115, 1347190, 1886066, 2020785, 2176230, 2829099, 4041570, 4715165, 5658198, 9430330, 14145495, 28290990]

約数ペア:

[(1, 28290990), (2, 14145495), (3, 9430330), (5, 5658198), (6, 4715165), (7, 4041570), (10, 2829099), (13, 2176230), (14, 2020785), (15, 1886066), (21, 1347190), (26, 1088115), (30, 943033), (35, 808314), (39, 725410), (42, 673595), (43, 657930), (65, 435246), (70, 404157), (78, 362705), (86, 328965), (91, 310890), (105, 269438), (129, 219310), (130, 217623), (182, 155445), (195, 145082), (210, 134719), (215, 131586), (241, 117390), (258, 109655), (273, 103630), (301, 93990), (390, 72541), (430, 65793), (455, 62178), (482, 58695), (546, 51815), (559, 50610), (602, 46995), (645, 43862), (723, 39130), (903, 31330), (910, 31089), (1118, 25305), (1205, 23478), (1290, 21931), (1365, 20726), (1446, 19565), (1505, 18798), (1677, 16870), (1687, 16770), (1806, 15665), (2410, 11739), (2730, 10363), (2795, 10122), (3010, 9399), (3133, 9030), (3354, 8435), (3374, 8385), (3615, 7826), (3913, 7230), (4515, 6266), (5061, 5590)]