78690300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20177}}^1$

素因数の和:20207

約数の個数: 72

約数和(自身を含む): 245203056

約数和(自身を除く): 166512756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 20177, 40354, 60531, 80708, 100885, 121062, 201770, 242124, 262301, 302655, 403540, 504425, 524602, 605310, 786903, 1008850, 1049204, 1210620, 1311505, 1513275, 1573806, 2017700, 2623010, 3026550, 3147612, 3934515, 5246020, 6053100, 6557525, 7869030, 13115050, 15738060, 19672575, 26230100, 39345150, 78690300]

約数ペア:

[(1, 78690300), (2, 39345150), (3, 26230100), (4, 19672575), (5, 15738060), (6, 13115050), (10, 7869030), (12, 6557525), (13, 6053100), (15, 5246020), (20, 3934515), (25, 3147612), (26, 3026550), (30, 2623010), (39, 2017700), (50, 1573806), (52, 1513275), (60, 1311505), (65, 1210620), (75, 1049204), (78, 1008850), (100, 786903), (130, 605310), (150, 524602), (156, 504425), (195, 403540), (260, 302655), (300, 262301), (325, 242124), (390, 201770), (650, 121062), (780, 100885), (975, 80708), (1300, 60531), (1950, 40354), (3900, 20177)]