900000075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{2557}}^1$

素因数の和:2621

約数の個数: 72

約数和(自身を含む): 1691902128

約数和(自身を除く): 791902053

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 361, 475, 741, 975, 1083, 1235, 1425, 1805, 2557, 3705, 4693, 5415, 6175, 7671, 9025, 12785, 14079, 18525, 23465, 27075, 33241, 38355, 48583, 63925, 70395, 99723, 117325, 145749, 166205, 191775, 242915, 351975, 498615, 631579, 728745, 831025, 923077, 1214575, 1894737, 2493075, 2769231, 3157895, 3643725, 4615385, 9473685, 12000001, 13846155, 15789475, 23076925, 36000003, 47368425, 60000005, 69230775, 180000015, 300000025, 900000075]

約数ペア:

[(1, 900000075), (3, 300000025), (5, 180000015), (13, 69230775), (15, 60000005), (19, 47368425), (25, 36000003), (39, 23076925), (57, 15789475), (65, 13846155), (75, 12000001), (95, 9473685), (195, 4615385), (247, 3643725), (285, 3157895), (325, 2769231), (361, 2493075), (475, 1894737), (741, 1214575), (975, 923077), (1083, 831025), (1235, 728745), (1425, 631579), (1805, 498615), (2557, 351975), (3705, 242915), (4693, 191775), (5415, 166205), (6175, 145749), (7671, 117325), (9025, 99723), (12785, 70395), (14079, 63925), (18525, 48583), (23465, 38355), (27075, 33241)]