648889210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:967

約数の個数: 64

約数和(自身を含む): 1262822400

約数和(自身を除く): 613933190

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 89, 145, 155, 178, 290, 310, 445, 811, 890, 899, 1622, 1798, 2581, 2759, 4055, 4495, 5162, 5518, 8110, 8990, 12905, 13795, 23519, 25141, 25810, 27590, 47038, 50282, 72179, 80011, 117595, 125705, 144358, 160022, 235190, 251410, 360895, 400055, 721790, 729089, 800110, 1458178, 2093191, 2237549, 3645445, 4186382, 4475098, 7290890, 10465955, 11187745, 20931910, 22375490, 64888921, 129777842, 324444605, 648889210]

約数ペア:

[(1, 648889210), (2, 324444605), (5, 129777842), (10, 64888921), (29, 22375490), (31, 20931910), (58, 11187745), (62, 10465955), (89, 7290890), (145, 4475098), (155, 4186382), (178, 3645445), (290, 2237549), (310, 2093191), (445, 1458178), (811, 800110), (890, 729089), (899, 721790), (1622, 400055), (1798, 360895), (2581, 251410), (2759, 235190), (4055, 160022), (4495, 144358), (5162, 125705), (5518, 117595), (8110, 80011), (8990, 72179), (12905, 50282), (13795, 47038), (23519, 27590), (25141, 25810)]