205429250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2039}}^1$

素因数の和:2100

約数の個数: 64

約数和(自身を含む): 427714560

約数和(自身を除く): 222285310

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 125, 130, 155, 250, 310, 325, 403, 650, 775, 806, 1550, 1625, 2015, 2039, 3250, 3875, 4030, 4078, 7750, 10075, 10195, 20150, 20390, 26507, 50375, 50975, 53014, 63209, 100750, 101950, 126418, 132535, 254875, 265070, 316045, 509750, 632090, 662675, 821717, 1325350, 1580225, 1643434, 3160450, 3313375, 4108585, 6626750, 7901125, 8217170, 15802250, 20542925, 41085850, 102714625, 205429250]

約数ペア:

[(1, 205429250), (2, 102714625), (5, 41085850), (10, 20542925), (13, 15802250), (25, 8217170), (26, 7901125), (31, 6626750), (50, 4108585), (62, 3313375), (65, 3160450), (125, 1643434), (130, 1580225), (155, 1325350), (250, 821717), (310, 662675), (325, 632090), (403, 509750), (650, 316045), (775, 265070), (806, 254875), (1550, 132535), (1625, 126418), (2015, 101950), (2039, 100750), (3250, 63209), (3875, 53014), (4030, 50975), (4078, 50375), (7750, 26507), (10075, 20390), (10195, 20150)]