128645120

素因数分解:

$2^{11}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{739}}^1$

素因数の和:783

約数の個数: 96

約数和(自身を含む): 327272400

約数和(自身を除く): 198627280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 739, 1024, 1088, 1280, 1360, 1478, 2048, 2176, 2560, 2720, 2956, 3695, 4352, 5120, 5440, 5912, 7390, 8704, 10240, 10880, 11824, 12563, 14780, 17408, 21760, 23648, 25126, 29560, 34816, 43520, 47296, 50252, 59120, 62815, 87040, 94592, 100504, 118240, 125630, 174080, 189184, 201008, 236480, 251260, 378368, 402016, 472960, 502520, 756736, 804032, 945920, 1005040, 1513472, 1608064, 1891840, 2010080, 3216128, 3783680, 4020160, 6432256, 7567360, 8040320, 12864512, 16080640, 25729024, 32161280, 64322560, 128645120]

約数ペア:

[(1, 128645120), (2, 64322560), (4, 32161280), (5, 25729024), (8, 16080640), (10, 12864512), (16, 8040320), (17, 7567360), (20, 6432256), (32, 4020160), (34, 3783680), (40, 3216128), (64, 2010080), (68, 1891840), (80, 1608064), (85, 1513472), (128, 1005040), (136, 945920), (160, 804032), (170, 756736), (256, 502520), (272, 472960), (320, 402016), (340, 378368), (512, 251260), (544, 236480), (640, 201008), (680, 189184), (739, 174080), (1024, 125630), (1088, 118240), (1280, 100504), (1360, 94592), (1478, 87040), (2048, 62815), (2176, 59120), (2560, 50252), (2720, 47296), (2956, 43520), (3695, 34816), (4352, 29560), (5120, 25126), (5440, 23648), (5912, 21760), (7390, 17408), (8704, 14780), (10240, 12563), (10880, 11824)]