20519850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1$

素因数の和:664

約数の個数: 96

約数和(自身を含む): 58121280

約数和(自身を除く): 37601430

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 25, 26, 30, 34, 39, 50, 51, 65, 75, 78, 85, 102, 130, 150, 170, 195, 221, 255, 325, 390, 425, 442, 510, 619, 650, 663, 850, 975, 1105, 1238, 1275, 1326, 1857, 1950, 2210, 2550, 3095, 3315, 3714, 5525, 6190, 6630, 8047, 9285, 10523, 11050, 15475, 16094, 16575, 18570, 21046, 24141, 30950, 31569, 33150, 40235, 46425, 48282, 52615, 63138, 80470, 92850, 105230, 120705, 136799, 157845, 201175, 241410, 263075, 273598, 315690, 402350, 410397, 526150, 603525, 683995, 789225, 820794, 1207050, 1367990, 1578450, 2051985, 3419975, 4103970, 6839950, 10259925, 20519850]

約数ペア:

[(1, 20519850), (2, 10259925), (3, 6839950), (5, 4103970), (6, 3419975), (10, 2051985), (13, 1578450), (15, 1367990), (17, 1207050), (25, 820794), (26, 789225), (30, 683995), (34, 603525), (39, 526150), (50, 410397), (51, 402350), (65, 315690), (75, 273598), (78, 263075), (85, 241410), (102, 201175), (130, 157845), (150, 136799), (170, 120705), (195, 105230), (221, 92850), (255, 80470), (325, 63138), (390, 52615), (425, 48282), (442, 46425), (510, 40235), (619, 33150), (650, 31569), (663, 30950), (850, 24141), (975, 21046), (1105, 18570), (1238, 16575), (1275, 16094), (1326, 15475), (1857, 11050), (1950, 10523), (2210, 9285), (2550, 8047), (3095, 6630), (3315, 6190), (3714, 5525)]