78117720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:437

約数の個数: 128

約数和(自身を含む): 250776000

約数和(自身を除く): 172658280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 149, 170, 204, 255, 257, 298, 340, 408, 447, 510, 514, 596, 680, 745, 771, 894, 1020, 1028, 1192, 1285, 1490, 1542, 1788, 2040, 2056, 2235, 2533, 2570, 2980, 3084, 3576, 3855, 4369, 4470, 5066, 5140, 5960, 6168, 7599, 7710, 8738, 8940, 10132, 10280, 12665, 13107, 15198, 15420, 17476, 17880, 20264, 21845, 25330, 26214, 30396, 30840, 34952, 37995, 38293, 43690, 50660, 52428, 60792, 65535, 75990, 76586, 87380, 101320, 104856, 114879, 131070, 151980, 153172, 174760, 191465, 229758, 262140, 303960, 306344, 382930, 459516, 524280, 574395, 650981, 765860, 919032, 1148790, 1301962, 1531720, 1952943, 2297580, 2603924, 3254905, 3905886, 4595160, 5207848, 6509810, 7811772, 9764715, 13019620, 15623544, 19529430, 26039240, 39058860, 78117720]

約数ペア:

[(1, 78117720), (2, 39058860), (3, 26039240), (4, 19529430), (5, 15623544), (6, 13019620), (8, 9764715), (10, 7811772), (12, 6509810), (15, 5207848), (17, 4595160), (20, 3905886), (24, 3254905), (30, 2603924), (34, 2297580), (40, 1952943), (51, 1531720), (60, 1301962), (68, 1148790), (85, 919032), (102, 765860), (120, 650981), (136, 574395), (149, 524280), (170, 459516), (204, 382930), (255, 306344), (257, 303960), (298, 262140), (340, 229758), (408, 191465), (447, 174760), (510, 153172), (514, 151980), (596, 131070), (680, 114879), (745, 104856), (771, 101320), (894, 87380), (1020, 76586), (1028, 75990), (1192, 65535), (1285, 60792), (1490, 52428), (1542, 50660), (1788, 43690), (2040, 38293), (2056, 37995), (2235, 34952), (2533, 30840), (2570, 30396), (2980, 26214), (3084, 25330), (3576, 21845), (3855, 20264), (4369, 17880), (4470, 17476), (5066, 15420), (5140, 15198), (5960, 13107), (6168, 12665), (7599, 10280), (7710, 10132), (8738, 8940)]