155189993125

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{1163}}^1$

素因数の和:1880

約数の個数: 80

約数和(自身を含む): 216652898880

約数和(自身を除く): 61462905755

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 323, 425, 475, 625, 661, 1163, 1615, 2125, 2375, 3305, 5815, 8075, 10625, 11237, 11875, 12559, 16525, 19771, 22097, 29075, 40375, 56185, 62795, 82625, 98855, 110485, 145375, 201875, 213503, 280925, 313975, 375649, 413125, 494275, 552425, 726875, 768743, 1067515, 1404625, 1569875, 1878245, 2471375, 2762125, 3843715, 5337575, 7023125, 7849375, 9391225, 12356875, 13068631, 13810625, 14606117, 19218575, 26687875, 46956125, 65343155, 73030585, 96092875, 133439375, 234780625, 248303989, 326715775, 365152925, 480464375, 1241519945, 1633578875, 1825764625, 6207599725, 8167894375, 9128823125, 31037998625, 155189993125]

約数ペア:

[(1, 155189993125), (5, 31037998625), (17, 9128823125), (19, 8167894375), (25, 6207599725), (85, 1825764625), (95, 1633578875), (125, 1241519945), (323, 480464375), (425, 365152925), (475, 326715775), (625, 248303989), (661, 234780625), (1163, 133439375), (1615, 96092875), (2125, 73030585), (2375, 65343155), (3305, 46956125), (5815, 26687875), (8075, 19218575), (10625, 14606117), (11237, 13810625), (11875, 13068631), (12559, 12356875), (16525, 9391225), (19771, 7849375), (22097, 7023125), (29075, 5337575), (40375, 3843715), (56185, 2762125), (62795, 2471375), (82625, 1878245), (98855, 1569875), (110485, 1404625), (145375, 1067515), (201875, 768743), (213503, 726875), (280925, 552425), (313975, 494275), (375649, 413125)]