61399980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1297}}^1$

素因数の和:1575

約数の個数: 72

約数和(自身を含む): 187098912

約数和(自身を除く): 125698932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 789, 1052, 1297, 1315, 1578, 2367, 2594, 2630, 3156, 3891, 3945, 4734, 5188, 5260, 6485, 7782, 7890, 9468, 11673, 11835, 12970, 15564, 15780, 19455, 23346, 23670, 25940, 38910, 46692, 47340, 58365, 77820, 116730, 233460, 341111, 682222, 1023333, 1364444, 1705555, 2046666, 3069999, 3411110, 4093332, 5116665, 6139998, 6822220, 10233330, 12279996, 15349995, 20466660, 30699990, 61399980]

約数ペア:

[(1, 61399980), (2, 30699990), (3, 20466660), (4, 15349995), (5, 12279996), (6, 10233330), (9, 6822220), (10, 6139998), (12, 5116665), (15, 4093332), (18, 3411110), (20, 3069999), (30, 2046666), (36, 1705555), (45, 1364444), (60, 1023333), (90, 682222), (180, 341111), (263, 233460), (526, 116730), (789, 77820), (1052, 58365), (1297, 47340), (1315, 46692), (1578, 38910), (2367, 25940), (2594, 23670), (2630, 23346), (3156, 19455), (3891, 15780), (3945, 15564), (4734, 12970), (5188, 11835), (5260, 11673), (6485, 9468), (7782, 7890)]