215117640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{487}}^1$

素因数の和:916

約数の個数: 128

約数和(自身を含む): 720288000

約数和(自身を除く): 505170360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 409, 487, 540, 818, 974, 1080, 1227, 1461, 1636, 1948, 2045, 2435, 2454, 2922, 3272, 3681, 3896, 4090, 4383, 4870, 4908, 5844, 6135, 7305, 7362, 8180, 8766, 9740, 9816, 11043, 11688, 12270, 13149, 14610, 14724, 16360, 17532, 18405, 19480, 21915, 22086, 24540, 26298, 29220, 29448, 35064, 36810, 43830, 44172, 49080, 52596, 55215, 58440, 65745, 73620, 87660, 88344, 105192, 110430, 131490, 147240, 175320, 199183, 220860, 262980, 398366, 441720, 525960, 597549, 796732, 995915, 1195098, 1593464, 1792647, 1991830, 2390196, 2987745, 3585294, 3983660, 4780392, 5377941, 5975490, 7170588, 7967320, 8963235, 10755882, 11950980, 14341176, 17926470, 21511764, 23901960, 26889705, 35852940, 43023528, 53779410, 71705880, 107558820, 215117640]

約数ペア:

[(1, 215117640), (2, 107558820), (3, 71705880), (4, 53779410), (5, 43023528), (6, 35852940), (8, 26889705), (9, 23901960), (10, 21511764), (12, 17926470), (15, 14341176), (18, 11950980), (20, 10755882), (24, 8963235), (27, 7967320), (30, 7170588), (36, 5975490), (40, 5377941), (45, 4780392), (54, 3983660), (60, 3585294), (72, 2987745), (90, 2390196), (108, 1991830), (120, 1792647), (135, 1593464), (180, 1195098), (216, 995915), (270, 796732), (360, 597549), (409, 525960), (487, 441720), (540, 398366), (818, 262980), (974, 220860), (1080, 199183), (1227, 175320), (1461, 147240), (1636, 131490), (1948, 110430), (2045, 105192), (2435, 88344), (2454, 87660), (2922, 73620), (3272, 65745), (3681, 58440), (3896, 55215), (4090, 52596), (4383, 49080), (4870, 44172), (4908, 43830), (5844, 36810), (6135, 35064), (7305, 29448), (7362, 29220), (8180, 26298), (8766, 24540), (9740, 22086), (9816, 21915), (11043, 19480), (11688, 18405), (12270, 17532), (13149, 16360), (14610, 14724)]