66816375

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 120766464

約数和(自身を除く): 53950089

約数列:

[1, 3, 5, 15, 17, 25, 47, 51, 75, 85, 125, 141, 223, 235, 255, 375, 425, 669, 705, 799, 1115, 1175, 1275, 2125, 2397, 3345, 3525, 3791, 3995, 5575, 5875, 6375, 10481, 11373, 11985, 16725, 17625, 18955, 19975, 27875, 31443, 52405, 56865, 59925, 83625, 94775, 99875, 157215, 178177, 262025, 284325, 299625, 473875, 534531, 786075, 890885, 1310125, 1421625, 2672655, 3930375, 4454425, 13363275, 22272125, 66816375]

約数ペア:

[(1, 66816375), (3, 22272125), (5, 13363275), (15, 4454425), (17, 3930375), (25, 2672655), (47, 1421625), (51, 1310125), (75, 890885), (85, 786075), (125, 534531), (141, 473875), (223, 299625), (235, 284325), (255, 262025), (375, 178177), (425, 157215), (669, 99875), (705, 94775), (799, 83625), (1115, 59925), (1175, 56865), (1275, 52405), (2125, 31443), (2397, 27875), (3345, 19975), (3525, 18955), (3791, 17625), (3995, 16725), (5575, 11985), (5875, 11373), (6375, 10481)]