18445425

素因数分解:

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

素因数の和:107

約数の個数: 72

約数和(自身を含む): 34718016

約数和(自身を除く): 16272591

約数列:

[1, 3, 5, 15, 17, 23, 25, 37, 51, 69, 75, 85, 111, 115, 185, 255, 289, 345, 391, 425, 555, 575, 629, 851, 867, 925, 1173, 1275, 1445, 1725, 1887, 1955, 2553, 2775, 3145, 4255, 4335, 5865, 6647, 7225, 9435, 9775, 10693, 12765, 14467, 15725, 19941, 21275, 21675, 29325, 32079, 33235, 43401, 47175, 53465, 63825, 72335, 99705, 160395, 166175, 217005, 245939, 267325, 361675, 498525, 737817, 801975, 1085025, 1229695, 3689085, 6148475, 18445425]

約数ペア:

[(1, 18445425), (3, 6148475), (5, 3689085), (15, 1229695), (17, 1085025), (23, 801975), (25, 737817), (37, 498525), (51, 361675), (69, 267325), (75, 245939), (85, 217005), (111, 166175), (115, 160395), (185, 99705), (255, 72335), (289, 63825), (345, 53465), (391, 47175), (425, 43401), (555, 33235), (575, 32079), (629, 29325), (851, 21675), (867, 21275), (925, 19941), (1173, 15725), (1275, 14467), (1445, 12765), (1725, 10693), (1887, 9775), (1955, 9435), (2553, 7225), (2775, 6647), (3145, 5865), (4255, 4335)]