1538863775

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 1998080448

約数和(自身を除く): 459216673

約数列:

[1, 5, 25, 61, 97, 101, 103, 305, 485, 505, 515, 1525, 2425, 2525, 2575, 5917, 6161, 6283, 9797, 9991, 10403, 29585, 30805, 31415, 48985, 49955, 52015, 147925, 154025, 157075, 244925, 249775, 260075, 597617, 609451, 634583, 1009091, 2988085, 3047255, 3172915, 5045455, 14940425, 15236275, 15864575, 25227275, 61554551, 307772755, 1538863775]

約数ペア:

[(1, 1538863775), (5, 307772755), (25, 61554551), (61, 25227275), (97, 15864575), (101, 15236275), (103, 14940425), (305, 5045455), (485, 3172915), (505, 3047255), (515, 2988085), (1525, 1009091), (2425, 634583), (2525, 609451), (2575, 597617), (5917, 260075), (6161, 249775), (6283, 244925), (9797, 157075), (9991, 154025), (10403, 147925), (29585, 52015), (30805, 49955), (31415, 48985)]