28274475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 50211072

約数和(自身を除く): 21936597

約数列:

[1, 3, 5, 15, 23, 25, 37, 69, 75, 111, 115, 185, 345, 443, 555, 575, 851, 925, 1329, 1725, 2215, 2553, 2775, 4255, 6645, 10189, 11075, 12765, 16391, 21275, 30567, 33225, 49173, 50945, 63825, 81955, 152835, 245865, 254725, 376993, 409775, 764175, 1130979, 1229325, 1884965, 5654895, 9424825, 28274475]

約数ペア:

[(1, 28274475), (3, 9424825), (5, 5654895), (15, 1884965), (23, 1229325), (25, 1130979), (37, 764175), (69, 409775), (75, 376993), (111, 254725), (115, 245865), (185, 152835), (345, 81955), (443, 63825), (555, 50945), (575, 49173), (851, 33225), (925, 30567), (1329, 21275), (1725, 16391), (2215, 12765), (2553, 11075), (2775, 10189), (4255, 6645)]