401014775

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 619496064

約数和(自身を除く): 218481289

約数列:

[1, 5, 7, 23, 25, 35, 43, 49, 115, 161, 175, 215, 245, 301, 331, 575, 805, 989, 1075, 1127, 1225, 1505, 1655, 2107, 2317, 4025, 4945, 5635, 6923, 7525, 7613, 8275, 10535, 11585, 14233, 16219, 24725, 28175, 34615, 38065, 48461, 52675, 53291, 57925, 71165, 81095, 99631, 173075, 190325, 242305, 266455, 327359, 355825, 373037, 405475, 498155, 697417, 1211525, 1332275, 1636795, 1865185, 2291513, 2490775, 3487085, 8183975, 9325925, 11457565, 16040591, 17435425, 57287825, 80202955, 401014775]

約数ペア:

[(1, 401014775), (5, 80202955), (7, 57287825), (23, 17435425), (25, 16040591), (35, 11457565), (43, 9325925), (49, 8183975), (115, 3487085), (161, 2490775), (175, 2291513), (215, 1865185), (245, 1636795), (301, 1332275), (331, 1211525), (575, 697417), (805, 498155), (989, 405475), (1075, 373037), (1127, 355825), (1225, 327359), (1505, 266455), (1655, 242305), (2107, 190325), (2317, 173075), (4025, 99631), (4945, 81095), (5635, 71165), (6923, 57925), (7525, 53291), (7613, 52675), (8275, 48461), (10535, 38065), (11585, 34615), (14233, 28175), (16219, 24725)]