221712640

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:504

約数の個数: 144

約数和(自身を含む): 588083328

約数和(自身を除く): 366370688

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 128, 136, 160, 170, 184, 230, 256, 272, 320, 340, 368, 391, 443, 460, 544, 640, 680, 736, 782, 886, 920, 1088, 1280, 1360, 1472, 1564, 1772, 1840, 1955, 2176, 2215, 2720, 2944, 3128, 3544, 3680, 3910, 4352, 4430, 5440, 5888, 6256, 7088, 7360, 7531, 7820, 8860, 10189, 10880, 12512, 14176, 14720, 15062, 15640, 17720, 20378, 21760, 25024, 28352, 29440, 30124, 31280, 35440, 37655, 40756, 50048, 50945, 56704, 60248, 62560, 70880, 75310, 81512, 100096, 101890, 113408, 120496, 125120, 141760, 150620, 163024, 173213, 203780, 240992, 250240, 283520, 301240, 326048, 346426, 407560, 481984, 500480, 567040, 602480, 652096, 692852, 815120, 866065, 963968, 1204960, 1304192, 1385704, 1630240, 1732130, 1927936, 2409920, 2608384, 2771408, 3260480, 3464260, 4819840, 5542816, 6520960, 6928520, 9639680, 11085632, 13041920, 13857040, 22171264, 27714080, 44342528, 55428160, 110856320, 221712640]

約数ペア:

[(1, 221712640), (2, 110856320), (4, 55428160), (5, 44342528), (8, 27714080), (10, 22171264), (16, 13857040), (17, 13041920), (20, 11085632), (23, 9639680), (32, 6928520), (34, 6520960), (40, 5542816), (46, 4819840), (64, 3464260), (68, 3260480), (80, 2771408), (85, 2608384), (92, 2409920), (115, 1927936), (128, 1732130), (136, 1630240), (160, 1385704), (170, 1304192), (184, 1204960), (230, 963968), (256, 866065), (272, 815120), (320, 692852), (340, 652096), (368, 602480), (391, 567040), (443, 500480), (460, 481984), (544, 407560), (640, 346426), (680, 326048), (736, 301240), (782, 283520), (886, 250240), (920, 240992), (1088, 203780), (1280, 173213), (1360, 163024), (1472, 150620), (1564, 141760), (1772, 125120), (1840, 120496), (1955, 113408), (2176, 101890), (2215, 100096), (2720, 81512), (2944, 75310), (3128, 70880), (3544, 62560), (3680, 60248), (3910, 56704), (4352, 50945), (4430, 50048), (5440, 40756), (5888, 37655), (6256, 35440), (7088, 31280), (7360, 30124), (7531, 29440), (7820, 28352), (8860, 25024), (10189, 21760), (10880, 20378), (12512, 17720), (14176, 15640), (14720, 15062)]