428101760

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:398

約数の個数: 128

約数和(自身を含む): 1081036800

約数和(自身を除く): 652935040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 127, 128, 160, 184, 229, 230, 254, 320, 368, 458, 460, 508, 635, 640, 736, 916, 920, 1016, 1145, 1270, 1472, 1832, 1840, 2032, 2290, 2540, 2921, 2944, 3664, 3680, 4064, 4580, 5080, 5267, 5842, 7328, 7360, 8128, 9160, 10160, 10534, 11684, 14605, 14656, 14720, 16256, 18320, 20320, 21068, 23368, 26335, 29083, 29210, 29312, 36640, 40640, 42136, 46736, 52670, 58166, 58420, 73280, 81280, 84272, 93472, 105340, 116332, 116840, 145415, 146560, 168544, 186944, 210680, 232664, 233680, 290830, 337088, 373888, 421360, 465328, 467360, 581660, 668909, 674176, 842720, 930656, 934720, 1163320, 1337818, 1685440, 1861312, 1869440, 2326640, 2675636, 3344545, 3370880, 3722624, 4653280, 5351272, 6689090, 9306560, 10702544, 13378180, 18613120, 21405088, 26756360, 42810176, 53512720, 85620352, 107025440, 214050880, 428101760]

約数ペア:

[(1, 428101760), (2, 214050880), (4, 107025440), (5, 85620352), (8, 53512720), (10, 42810176), (16, 26756360), (20, 21405088), (23, 18613120), (32, 13378180), (40, 10702544), (46, 9306560), (64, 6689090), (80, 5351272), (92, 4653280), (115, 3722624), (127, 3370880), (128, 3344545), (160, 2675636), (184, 2326640), (229, 1869440), (230, 1861312), (254, 1685440), (320, 1337818), (368, 1163320), (458, 934720), (460, 930656), (508, 842720), (635, 674176), (640, 668909), (736, 581660), (916, 467360), (920, 465328), (1016, 421360), (1145, 373888), (1270, 337088), (1472, 290830), (1832, 233680), (1840, 232664), (2032, 210680), (2290, 186944), (2540, 168544), (2921, 146560), (2944, 145415), (3664, 116840), (3680, 116332), (4064, 105340), (4580, 93472), (5080, 84272), (5267, 81280), (5842, 73280), (7328, 58420), (7360, 58166), (8128, 52670), (9160, 46736), (10160, 42136), (10534, 40640), (11684, 36640), (14605, 29312), (14656, 29210), (14720, 29083), (16256, 26335), (18320, 23368), (20320, 21068)]