72751990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 143410176

約数和(自身を除く): 70658186

約数列:

[1, 2, 5, 10, 23, 37, 46, 74, 83, 103, 115, 166, 185, 206, 230, 370, 415, 515, 830, 851, 1030, 1702, 1909, 2369, 3071, 3811, 3818, 4255, 4738, 6142, 7622, 8510, 8549, 9545, 11845, 15355, 17098, 19055, 19090, 23690, 30710, 38110, 42745, 70633, 85490, 87653, 141266, 175306, 196627, 316313, 353165, 393254, 438265, 632626, 706330, 876530, 983135, 1581565, 1966270, 3163130, 7275199, 14550398, 36375995, 72751990]

約数ペア:

[(1, 72751990), (2, 36375995), (5, 14550398), (10, 7275199), (23, 3163130), (37, 1966270), (46, 1581565), (74, 983135), (83, 876530), (103, 706330), (115, 632626), (166, 438265), (185, 393254), (206, 353165), (230, 316313), (370, 196627), (415, 175306), (515, 141266), (830, 87653), (851, 85490), (1030, 70633), (1702, 42745), (1909, 38110), (2369, 30710), (3071, 23690), (3811, 19090), (3818, 19055), (4255, 17098), (4738, 15355), (6142, 11845), (7622, 9545), (8510, 8549)]