648291225

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^2\times {\mathrm{101}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 1148337216

約数和(自身を除く): 500045991

約数列:

[1, 3, 5, 15, 23, 25, 61, 69, 75, 101, 115, 183, 303, 305, 345, 505, 575, 915, 1403, 1515, 1525, 1725, 2323, 2525, 3721, 4209, 4575, 6161, 6969, 7015, 7575, 11163, 11615, 18483, 18605, 21045, 30805, 34845, 35075, 55815, 58075, 85583, 92415, 93025, 105225, 141703, 154025, 174225, 256749, 279075, 375821, 425109, 427915, 462075, 708515, 1127463, 1283745, 1879105, 2125545, 2139575, 3542575, 5637315, 6418725, 8643883, 9395525, 10627725, 25931649, 28186575, 43219415, 129658245, 216097075, 648291225]

約数ペア:

[(1, 648291225), (3, 216097075), (5, 129658245), (15, 43219415), (23, 28186575), (25, 25931649), (61, 10627725), (69, 9395525), (75, 8643883), (101, 6418725), (115, 5637315), (183, 3542575), (303, 2139575), (305, 2125545), (345, 1879105), (505, 1283745), (575, 1127463), (915, 708515), (1403, 462075), (1515, 427915), (1525, 425109), (1725, 375821), (2323, 279075), (2525, 256749), (3721, 174225), (4209, 154025), (4575, 141703), (6161, 105225), (6969, 93025), (7015, 92415), (7575, 85583), (11163, 58075), (11615, 55815), (18483, 35075), (18605, 34845), (21045, 30805)]