64210825

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 100761408

約数和(自身を除く): 36550583

約数列:

[1, 5, 7, 23, 25, 35, 43, 49, 53, 115, 161, 175, 215, 245, 265, 301, 371, 575, 805, 989, 1075, 1127, 1219, 1225, 1325, 1505, 1855, 2107, 2279, 2597, 4025, 4945, 5635, 6095, 6923, 7525, 8533, 9275, 10535, 11395, 12985, 15953, 24725, 28175, 30475, 34615, 42665, 48461, 52417, 52675, 56975, 59731, 64925, 79765, 111671, 173075, 213325, 242305, 262085, 298655, 366919, 398825, 558355, 1211525, 1310425, 1493275, 1834595, 2568433, 2791775, 9172975, 12842165, 64210825]

約数ペア:

[(1, 64210825), (5, 12842165), (7, 9172975), (23, 2791775), (25, 2568433), (35, 1834595), (43, 1493275), (49, 1310425), (53, 1211525), (115, 558355), (161, 398825), (175, 366919), (215, 298655), (245, 262085), (265, 242305), (301, 213325), (371, 173075), (575, 111671), (805, 79765), (989, 64925), (1075, 59731), (1127, 56975), (1219, 52675), (1225, 52417), (1325, 48461), (1505, 42665), (1855, 34615), (2107, 30475), (2279, 28175), (2597, 24725), (4025, 15953), (4945, 12985), (5635, 11395), (6095, 10535), (6923, 9275), (7525, 8533)]