257416250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:146

約数の個数: 160

約数和(自身を含む): 621401088

約数和(自身を除く): 363984838

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 31, 35, 50, 62, 65, 70, 73, 91, 125, 130, 146, 155, 175, 182, 217, 250, 310, 325, 350, 365, 403, 434, 455, 511, 625, 650, 730, 775, 806, 875, 910, 949, 1022, 1085, 1250, 1550, 1625, 1750, 1825, 1898, 2015, 2170, 2263, 2275, 2555, 2821, 3250, 3650, 3875, 4030, 4375, 4526, 4550, 4745, 5110, 5425, 5642, 6643, 7750, 8125, 8750, 9125, 9490, 10075, 10850, 11315, 11375, 12775, 13286, 14105, 15841, 16250, 18250, 19375, 20150, 22630, 22750, 23725, 25550, 27125, 28210, 29419, 31682, 33215, 38750, 45625, 47450, 50375, 54250, 56575, 56875, 58838, 63875, 66430, 70525, 79205, 91250, 100750, 113150, 113750, 118625, 127750, 135625, 141050, 147095, 158410, 166075, 205933, 237250, 251875, 271250, 282875, 294190, 319375, 332150, 352625, 396025, 411866, 503750, 565750, 593125, 638750, 705250, 735475, 792050, 830375, 1029665, 1186250, 1414375, 1470950, 1660750, 1763125, 1980125, 2059330, 2828750, 3526250, 3677375, 3960250, 4151875, 5148325, 7354750, 8303750, 9900625, 10296650, 18386875, 19801250, 25741625, 36773750, 51483250, 128708125, 257416250]

約数ペア:

[(1, 257416250), (2, 128708125), (5, 51483250), (7, 36773750), (10, 25741625), (13, 19801250), (14, 18386875), (25, 10296650), (26, 9900625), (31, 8303750), (35, 7354750), (50, 5148325), (62, 4151875), (65, 3960250), (70, 3677375), (73, 3526250), (91, 2828750), (125, 2059330), (130, 1980125), (146, 1763125), (155, 1660750), (175, 1470950), (182, 1414375), (217, 1186250), (250, 1029665), (310, 830375), (325, 792050), (350, 735475), (365, 705250), (403, 638750), (434, 593125), (455, 565750), (511, 503750), (625, 411866), (650, 396025), (730, 352625), (775, 332150), (806, 319375), (875, 294190), (910, 282875), (949, 271250), (1022, 251875), (1085, 237250), (1250, 205933), (1550, 166075), (1625, 158410), (1750, 147095), (1825, 141050), (1898, 135625), (2015, 127750), (2170, 118625), (2263, 113750), (2275, 113150), (2555, 100750), (2821, 91250), (3250, 79205), (3650, 70525), (3875, 66430), (4030, 63875), (4375, 58838), (4526, 56875), (4550, 56575), (4745, 54250), (5110, 50375), (5425, 47450), (5642, 45625), (6643, 38750), (7750, 33215), (8125, 31682), (8750, 29419), (9125, 28210), (9490, 27125), (10075, 25550), (10850, 23725), (11315, 22750), (11375, 22630), (12775, 20150), (13286, 19375), (14105, 18250), (15841, 16250)]