78490425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{223}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 148157184

約数和(自身を除く): 69666759

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 223, 247, 285, 325, 361, 475, 669, 741, 975, 1083, 1115, 1235, 1425, 1805, 2899, 3345, 3705, 4237, 4693, 5415, 5575, 6175, 8697, 9025, 12711, 14079, 14495, 16725, 18525, 21185, 23465, 27075, 43485, 55081, 63555, 70395, 72475, 80503, 105925, 117325, 165243, 217425, 241509, 275405, 317775, 351975, 402515, 826215, 1046539, 1207545, 1377025, 2012575, 3139617, 4131075, 5232695, 6037725, 15698085, 26163475, 78490425]

約数ペア:

[(1, 78490425), (3, 26163475), (5, 15698085), (13, 6037725), (15, 5232695), (19, 4131075), (25, 3139617), (39, 2012575), (57, 1377025), (65, 1207545), (75, 1046539), (95, 826215), (195, 402515), (223, 351975), (247, 317775), (285, 275405), (325, 241509), (361, 217425), (475, 165243), (669, 117325), (741, 105925), (975, 80503), (1083, 72475), (1115, 70395), (1235, 63555), (1425, 55081), (1805, 43485), (2899, 27075), (3345, 23465), (3705, 21185), (4237, 18525), (4693, 16725), (5415, 14495), (5575, 14079), (6175, 12711), (8697, 9025)]