19899750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 54127008

約数和(自身を除く): 34227258

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 157, 169, 195, 250, 314, 325, 338, 375, 390, 471, 507, 650, 750, 785, 845, 942, 975, 1014, 1570, 1625, 1690, 1950, 2041, 2355, 2535, 3250, 3925, 4082, 4225, 4710, 4875, 5070, 6123, 7850, 8450, 9750, 10205, 11775, 12246, 12675, 19625, 20410, 21125, 23550, 25350, 26533, 30615, 39250, 42250, 51025, 53066, 58875, 61230, 63375, 79599, 102050, 117750, 126750, 132665, 153075, 159198, 255125, 265330, 306150, 397995, 510250, 663325, 765375, 795990, 1326650, 1530750, 1989975, 3316625, 3979950, 6633250, 9949875, 19899750]

約数ペア:

[(1, 19899750), (2, 9949875), (3, 6633250), (5, 3979950), (6, 3316625), (10, 1989975), (13, 1530750), (15, 1326650), (25, 795990), (26, 765375), (30, 663325), (39, 510250), (50, 397995), (65, 306150), (75, 265330), (78, 255125), (125, 159198), (130, 153075), (150, 132665), (157, 126750), (169, 117750), (195, 102050), (250, 79599), (314, 63375), (325, 61230), (338, 58875), (375, 53066), (390, 51025), (471, 42250), (507, 39250), (650, 30615), (750, 26533), (785, 25350), (845, 23550), (942, 21125), (975, 20410), (1014, 19625), (1570, 12675), (1625, 12246), (1690, 11775), (1950, 10205), (2041, 9750), (2355, 8450), (2535, 7850), (3250, 6123), (3925, 5070), (4082, 4875), (4225, 4710)]