180726280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:539

約数の個数: 128

約数和(自身を含む): 491028480

約数和(自身を除く): 310302200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 47, 56, 62, 70, 94, 124, 140, 155, 188, 217, 235, 248, 280, 310, 329, 376, 434, 443, 470, 620, 658, 868, 886, 940, 1085, 1240, 1316, 1457, 1645, 1736, 1772, 1880, 2170, 2215, 2632, 2914, 3101, 3290, 3544, 4340, 4430, 5828, 6202, 6580, 7285, 8680, 8860, 10199, 11656, 12404, 13160, 13733, 14570, 15505, 17720, 20398, 20821, 24808, 27466, 29140, 31010, 40796, 41642, 50995, 54932, 58280, 62020, 68665, 81592, 83284, 96131, 101990, 104105, 109864, 124040, 137330, 145747, 166568, 192262, 203980, 208210, 274660, 291494, 384524, 407960, 416420, 480655, 549320, 582988, 645451, 728735, 769048, 832840, 961310, 1165976, 1290902, 1457470, 1922620, 2581804, 2914940, 3227255, 3845240, 4518157, 5163608, 5829880, 6454510, 9036314, 12909020, 18072628, 22590785, 25818040, 36145256, 45181570, 90363140, 180726280]

約数ペア:

[(1, 180726280), (2, 90363140), (4, 45181570), (5, 36145256), (7, 25818040), (8, 22590785), (10, 18072628), (14, 12909020), (20, 9036314), (28, 6454510), (31, 5829880), (35, 5163608), (40, 4518157), (47, 3845240), (56, 3227255), (62, 2914940), (70, 2581804), (94, 1922620), (124, 1457470), (140, 1290902), (155, 1165976), (188, 961310), (217, 832840), (235, 769048), (248, 728735), (280, 645451), (310, 582988), (329, 549320), (376, 480655), (434, 416420), (443, 407960), (470, 384524), (620, 291494), (658, 274660), (868, 208210), (886, 203980), (940, 192262), (1085, 166568), (1240, 145747), (1316, 137330), (1457, 124040), (1645, 109864), (1736, 104105), (1772, 101990), (1880, 96131), (2170, 83284), (2215, 81592), (2632, 68665), (2914, 62020), (3101, 58280), (3290, 54932), (3544, 50995), (4340, 41642), (4430, 40796), (5828, 31010), (6202, 29140), (6580, 27466), (7285, 24808), (8680, 20821), (8860, 20398), (10199, 17720), (11656, 15505), (12404, 14570), (13160, 13733)]