490405120

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:796

約数の個数: 144

約数和(自身を含む): 1285659648

約数和(自身を除く): 795254528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 256, 272, 310, 320, 340, 496, 527, 544, 620, 640, 680, 727, 992, 1054, 1088, 1240, 1280, 1360, 1454, 1984, 2108, 2176, 2480, 2635, 2720, 2908, 3635, 3968, 4216, 4352, 4960, 5270, 5440, 5816, 7270, 7936, 8432, 9920, 10540, 10880, 11632, 12359, 14540, 16864, 19840, 21080, 21760, 22537, 23264, 24718, 29080, 33728, 39680, 42160, 45074, 46528, 49436, 58160, 61795, 67456, 84320, 90148, 93056, 98872, 112685, 116320, 123590, 134912, 168640, 180296, 186112, 197744, 225370, 232640, 247180, 337280, 360592, 383129, 395488, 450740, 465280, 494360, 674560, 721184, 766258, 790976, 901480, 930560, 988720, 1442368, 1532516, 1581952, 1802960, 1915645, 1977440, 2884736, 3065032, 3163904, 3605920, 3831290, 3954880, 5769472, 6130064, 7211840, 7662580, 7909760, 12260128, 14423680, 15325160, 15819520, 24520256, 28847360, 30650320, 49040512, 61300640, 98081024, 122601280, 245202560, 490405120]

約数ペア:

[(1, 490405120), (2, 245202560), (4, 122601280), (5, 98081024), (8, 61300640), (10, 49040512), (16, 30650320), (17, 28847360), (20, 24520256), (31, 15819520), (32, 15325160), (34, 14423680), (40, 12260128), (62, 7909760), (64, 7662580), (68, 7211840), (80, 6130064), (85, 5769472), (124, 3954880), (128, 3831290), (136, 3605920), (155, 3163904), (160, 3065032), (170, 2884736), (248, 1977440), (256, 1915645), (272, 1802960), (310, 1581952), (320, 1532516), (340, 1442368), (496, 988720), (527, 930560), (544, 901480), (620, 790976), (640, 766258), (680, 721184), (727, 674560), (992, 494360), (1054, 465280), (1088, 450740), (1240, 395488), (1280, 383129), (1360, 360592), (1454, 337280), (1984, 247180), (2108, 232640), (2176, 225370), (2480, 197744), (2635, 186112), (2720, 180296), (2908, 168640), (3635, 134912), (3968, 123590), (4216, 116320), (4352, 112685), (4960, 98872), (5270, 93056), (5440, 90148), (5816, 84320), (7270, 67456), (7936, 61795), (8432, 58160), (9920, 49436), (10540, 46528), (10880, 45074), (11632, 42160), (12359, 39680), (14540, 33728), (16864, 29080), (19840, 24718), (21080, 23264), (21760, 22537)]