245839360

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 160

約数和(自身を含む): 649645920

約数和(自身を除く): 403806560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 83, 89, 104, 128, 130, 160, 166, 178, 208, 256, 260, 320, 332, 356, 415, 416, 445, 512, 520, 640, 664, 712, 830, 832, 890, 1040, 1079, 1157, 1280, 1328, 1424, 1660, 1664, 1780, 2080, 2158, 2314, 2560, 2656, 2848, 3320, 3328, 3560, 4160, 4316, 4628, 5312, 5395, 5696, 5785, 6640, 6656, 7120, 7387, 8320, 8632, 9256, 10624, 10790, 11392, 11570, 13280, 14240, 14774, 16640, 17264, 18512, 21248, 21580, 22784, 23140, 26560, 28480, 29548, 33280, 34528, 36935, 37024, 42496, 43160, 45568, 46280, 53120, 56960, 59096, 69056, 73870, 74048, 86320, 92560, 96031, 106240, 113920, 118192, 138112, 147740, 148096, 172640, 185120, 192062, 212480, 227840, 236384, 276224, 295480, 296192, 345280, 370240, 384124, 472768, 480155, 552448, 590960, 592384, 690560, 740480, 768248, 945536, 960310, 1181920, 1381120, 1480960, 1536496, 1891072, 1920620, 2363840, 2762240, 2961920, 3072992, 3782144, 3841240, 4727680, 6145984, 7682480, 9455360, 12291968, 15364960, 18910720, 24583936, 30729920, 49167872, 61459840, 122919680, 245839360]

約数ペア:

[(1, 245839360), (2, 122919680), (4, 61459840), (5, 49167872), (8, 30729920), (10, 24583936), (13, 18910720), (16, 15364960), (20, 12291968), (26, 9455360), (32, 7682480), (40, 6145984), (52, 4727680), (64, 3841240), (65, 3782144), (80, 3072992), (83, 2961920), (89, 2762240), (104, 2363840), (128, 1920620), (130, 1891072), (160, 1536496), (166, 1480960), (178, 1381120), (208, 1181920), (256, 960310), (260, 945536), (320, 768248), (332, 740480), (356, 690560), (415, 592384), (416, 590960), (445, 552448), (512, 480155), (520, 472768), (640, 384124), (664, 370240), (712, 345280), (830, 296192), (832, 295480), (890, 276224), (1040, 236384), (1079, 227840), (1157, 212480), (1280, 192062), (1328, 185120), (1424, 172640), (1660, 148096), (1664, 147740), (1780, 138112), (2080, 118192), (2158, 113920), (2314, 106240), (2560, 96031), (2656, 92560), (2848, 86320), (3320, 74048), (3328, 73870), (3560, 69056), (4160, 59096), (4316, 56960), (4628, 53120), (5312, 46280), (5395, 45568), (5696, 43160), (5785, 42496), (6640, 37024), (6656, 36935), (7120, 34528), (7387, 33280), (8320, 29548), (8632, 28480), (9256, 26560), (10624, 23140), (10790, 22784), (11392, 21580), (11570, 21248), (13280, 18512), (14240, 17264), (14774, 16640)]