19396014625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{977}}^1$

素因数の和:1667

約数の個数: 64

約数和(自身を含む): 27511061760

約数和(自身を除く): 8115047135

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 247, 325, 475, 643, 977, 1235, 1625, 2375, 3215, 4885, 6175, 8359, 12217, 12701, 16075, 18563, 24425, 30875, 41795, 61085, 63505, 80375, 92815, 122125, 158821, 208975, 241319, 305425, 317525, 464075, 628211, 794105, 1044875, 1206595, 1527125, 1587625, 2320375, 3141055, 3970525, 6032975, 8166743, 11936009, 15705275, 19852625, 30164875, 40833715, 59680045, 78526375, 155168117, 204168575, 298400225, 775840585, 1020842875, 1492001125, 3879202925, 19396014625]

約数ペア:

[(1, 19396014625), (5, 3879202925), (13, 1492001125), (19, 1020842875), (25, 775840585), (65, 298400225), (95, 204168575), (125, 155168117), (247, 78526375), (325, 59680045), (475, 40833715), (643, 30164875), (977, 19852625), (1235, 15705275), (1625, 11936009), (2375, 8166743), (3215, 6032975), (4885, 3970525), (6175, 3141055), (8359, 2320375), (12217, 1587625), (12701, 1527125), (16075, 1206595), (18563, 1044875), (24425, 794105), (30875, 628211), (41795, 464075), (61085, 317525), (63505, 305425), (80375, 241319), (92815, 208975), (122125, 158821)]