20416944

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:458

約数の個数: 80

約数和(自身を含む): 56583680

約数和(自身を除く): 36166736

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 61, 76, 114, 122, 152, 183, 228, 244, 304, 366, 367, 456, 488, 732, 734, 912, 976, 1101, 1159, 1464, 1468, 2202, 2318, 2928, 2936, 3477, 4404, 4636, 5872, 6954, 6973, 8808, 9272, 13908, 13946, 17616, 18544, 20919, 22387, 27816, 27892, 41838, 44774, 55632, 55784, 67161, 83676, 89548, 111568, 134322, 167352, 179096, 268644, 334704, 358192, 425353, 537288, 850706, 1074576, 1276059, 1701412, 2552118, 3402824, 5104236, 6805648, 10208472, 20416944]

約数ペア:

[(1, 20416944), (2, 10208472), (3, 6805648), (4, 5104236), (6, 3402824), (8, 2552118), (12, 1701412), (16, 1276059), (19, 1074576), (24, 850706), (38, 537288), (48, 425353), (57, 358192), (61, 334704), (76, 268644), (114, 179096), (122, 167352), (152, 134322), (183, 111568), (228, 89548), (244, 83676), (304, 67161), (366, 55784), (367, 55632), (456, 44774), (488, 41838), (732, 27892), (734, 27816), (912, 22387), (976, 20919), (1101, 18544), (1159, 17616), (1464, 13946), (1468, 13908), (2202, 9272), (2318, 8808), (2928, 6973), (2936, 6954), (3477, 5872), (4404, 4636)]