248601500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 144

約数和(自身を含む): 644847840

約数和(自身を除く): 396246340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 73, 98, 100, 125, 139, 140, 146, 175, 196, 245, 250, 278, 292, 350, 365, 490, 500, 511, 556, 695, 700, 730, 875, 973, 980, 1022, 1225, 1390, 1460, 1750, 1825, 1946, 2044, 2450, 2555, 2780, 3475, 3500, 3577, 3650, 3892, 4865, 4900, 5110, 6125, 6811, 6950, 7154, 7300, 9125, 9730, 10147, 10220, 12250, 12775, 13622, 13900, 14308, 17375, 17885, 18250, 19460, 20294, 24325, 24500, 25550, 27244, 34055, 34750, 35770, 36500, 40588, 48650, 50735, 51100, 63875, 68110, 69500, 71029, 71540, 89425, 97300, 101470, 121625, 127750, 136220, 142058, 170275, 178850, 202940, 243250, 253675, 255500, 284116, 340550, 355145, 357700, 447125, 486500, 497203, 507350, 681100, 710290, 851375, 894250, 994406, 1014700, 1268375, 1420580, 1702750, 1775725, 1788500, 1988812, 2486015, 2536750, 3405500, 3551450, 4972030, 5073500, 7102900, 8878625, 9944060, 12430075, 17757250, 24860150, 35514500, 49720300, 62150375, 124300750, 248601500]

約数ペア:

[(1, 248601500), (2, 124300750), (4, 62150375), (5, 49720300), (7, 35514500), (10, 24860150), (14, 17757250), (20, 12430075), (25, 9944060), (28, 8878625), (35, 7102900), (49, 5073500), (50, 4972030), (70, 3551450), (73, 3405500), (98, 2536750), (100, 2486015), (125, 1988812), (139, 1788500), (140, 1775725), (146, 1702750), (175, 1420580), (196, 1268375), (245, 1014700), (250, 994406), (278, 894250), (292, 851375), (350, 710290), (365, 681100), (490, 507350), (500, 497203), (511, 486500), (556, 447125), (695, 357700), (700, 355145), (730, 340550), (875, 284116), (973, 255500), (980, 253675), (1022, 243250), (1225, 202940), (1390, 178850), (1460, 170275), (1750, 142058), (1825, 136220), (1946, 127750), (2044, 121625), (2450, 101470), (2555, 97300), (2780, 89425), (3475, 71540), (3500, 71029), (3577, 69500), (3650, 68110), (3892, 63875), (4865, 51100), (4900, 50735), (5110, 48650), (6125, 40588), (6811, 36500), (6950, 35770), (7154, 34750), (7300, 34055), (9125, 27244), (9730, 25550), (10147, 24500), (10220, 24325), (12250, 20294), (12775, 19460), (13622, 18250), (13900, 17885), (14308, 17375)]