651015

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:88

約数の個数: 48

約数和(自身を含む): 1280448

約数和(自身を除く): 629433

約数列:

[1, 3, 5, 9, 15, 17, 23, 37, 45, 51, 69, 85, 111, 115, 153, 185, 207, 255, 333, 345, 391, 555, 629, 765, 851, 1035, 1173, 1665, 1887, 1955, 2553, 3145, 3519, 4255, 5661, 5865, 7659, 9435, 12765, 14467, 17595, 28305, 38295, 43401, 72335, 130203, 217005, 651015]

約数ペア:

[(1, 651015), (3, 217005), (5, 130203), (9, 72335), (15, 43401), (17, 38295), (23, 28305), (37, 17595), (45, 14467), (51, 12765), (69, 9435), (85, 7659), (111, 5865), (115, 5661), (153, 4255), (185, 3519), (207, 3145), (255, 2553), (333, 1955), (345, 1887), (391, 1665), (555, 1173), (629, 1035), (765, 851)]