28294240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:312

約数の個数: 96

約数和(自身を含む): 73495296

約数和(自身を除く): 45201056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 65, 80, 104, 122, 130, 160, 208, 223, 244, 260, 305, 416, 446, 488, 520, 610, 793, 892, 976, 1040, 1115, 1220, 1586, 1784, 1952, 2080, 2230, 2440, 2899, 3172, 3568, 3965, 4460, 4880, 5798, 6344, 7136, 7930, 8920, 9760, 11596, 12688, 13603, 14495, 15860, 17840, 23192, 25376, 27206, 28990, 31720, 35680, 46384, 54412, 57980, 63440, 68015, 92768, 108824, 115960, 126880, 136030, 176839, 217648, 231920, 272060, 353678, 435296, 463840, 544120, 707356, 884195, 1088240, 1414712, 1768390, 2176480, 2829424, 3536780, 5658848, 7073560, 14147120, 28294240]

約数ペア:

[(1, 28294240), (2, 14147120), (4, 7073560), (5, 5658848), (8, 3536780), (10, 2829424), (13, 2176480), (16, 1768390), (20, 1414712), (26, 1088240), (32, 884195), (40, 707356), (52, 544120), (61, 463840), (65, 435296), (80, 353678), (104, 272060), (122, 231920), (130, 217648), (160, 176839), (208, 136030), (223, 126880), (244, 115960), (260, 108824), (305, 92768), (416, 68015), (446, 63440), (488, 57980), (520, 54412), (610, 46384), (793, 35680), (892, 31720), (976, 28990), (1040, 27206), (1115, 25376), (1220, 23192), (1586, 17840), (1784, 15860), (1952, 14495), (2080, 13603), (2230, 12688), (2440, 11596), (2899, 9760), (3172, 8920), (3568, 7930), (3965, 7136), (4460, 6344), (4880, 5798)]