28570880

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:152

約数の個数: 144

約数和(自身を含む): 78808464

約数和(自身を除く): 50237584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 101, 104, 128, 130, 136, 160, 170, 202, 208, 221, 256, 260, 272, 320, 340, 404, 416, 442, 505, 520, 544, 640, 680, 808, 832, 884, 1010, 1040, 1088, 1105, 1280, 1313, 1360, 1616, 1664, 1717, 1768, 2020, 2080, 2176, 2210, 2626, 2720, 3232, 3328, 3434, 3536, 4040, 4160, 4352, 4420, 5252, 5440, 6464, 6565, 6868, 7072, 8080, 8320, 8585, 8840, 10504, 10880, 12928, 13130, 13736, 14144, 16160, 16640, 17170, 17680, 21008, 21760, 22321, 25856, 26260, 27472, 28288, 32320, 34340, 35360, 42016, 44642, 52520, 54944, 56576, 64640, 68680, 70720, 84032, 89284, 105040, 109888, 111605, 129280, 137360, 141440, 168064, 178568, 210080, 219776, 223210, 274720, 282880, 336128, 357136, 420160, 439552, 446420, 549440, 714272, 840320, 892840, 1098880, 1428544, 1680640, 1785680, 2197760, 2857088, 3571360, 5714176, 7142720, 14285440, 28570880]

約数ペア:

[(1, 28570880), (2, 14285440), (4, 7142720), (5, 5714176), (8, 3571360), (10, 2857088), (13, 2197760), (16, 1785680), (17, 1680640), (20, 1428544), (26, 1098880), (32, 892840), (34, 840320), (40, 714272), (52, 549440), (64, 446420), (65, 439552), (68, 420160), (80, 357136), (85, 336128), (101, 282880), (104, 274720), (128, 223210), (130, 219776), (136, 210080), (160, 178568), (170, 168064), (202, 141440), (208, 137360), (221, 129280), (256, 111605), (260, 109888), (272, 105040), (320, 89284), (340, 84032), (404, 70720), (416, 68680), (442, 64640), (505, 56576), (520, 54944), (544, 52520), (640, 44642), (680, 42016), (808, 35360), (832, 34340), (884, 32320), (1010, 28288), (1040, 27472), (1088, 26260), (1105, 25856), (1280, 22321), (1313, 21760), (1360, 21008), (1616, 17680), (1664, 17170), (1717, 16640), (1768, 16160), (2020, 14144), (2080, 13736), (2176, 13130), (2210, 12928), (2626, 10880), (2720, 10504), (3232, 8840), (3328, 8585), (3434, 8320), (3536, 8080), (4040, 7072), (4160, 6868), (4352, 6565), (4420, 6464), (5252, 5440)]