161352520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:719

約数の個数: 128

約数和(自身を含む): 443750400

約数和(自身を除く): 282397880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 406, 434, 580, 620, 641, 812, 868, 899, 1015, 1085, 1160, 1240, 1282, 1624, 1736, 1798, 2030, 2170, 2564, 3205, 3596, 4060, 4340, 4487, 4495, 5128, 6293, 6410, 7192, 8120, 8680, 8974, 8990, 12586, 12820, 17948, 17980, 18589, 19871, 22435, 25172, 25640, 31465, 35896, 35960, 37178, 39742, 44870, 50344, 62930, 74356, 79484, 89740, 92945, 99355, 125860, 130123, 139097, 148712, 158968, 179480, 185890, 198710, 251720, 260246, 278194, 371780, 397420, 520492, 556388, 576259, 650615, 695485, 743560, 794840, 1040984, 1112776, 1152518, 1301230, 1390970, 2305036, 2602460, 2781940, 2881295, 4033813, 4610072, 5204920, 5563880, 5762590, 8067626, 11525180, 16135252, 20169065, 23050360, 32270504, 40338130, 80676260, 161352520]

約数ペア:

[(1, 161352520), (2, 80676260), (4, 40338130), (5, 32270504), (7, 23050360), (8, 20169065), (10, 16135252), (14, 11525180), (20, 8067626), (28, 5762590), (29, 5563880), (31, 5204920), (35, 4610072), (40, 4033813), (56, 2881295), (58, 2781940), (62, 2602460), (70, 2305036), (116, 1390970), (124, 1301230), (140, 1152518), (145, 1112776), (155, 1040984), (203, 794840), (217, 743560), (232, 695485), (248, 650615), (280, 576259), (290, 556388), (310, 520492), (406, 397420), (434, 371780), (580, 278194), (620, 260246), (641, 251720), (812, 198710), (868, 185890), (899, 179480), (1015, 158968), (1085, 148712), (1160, 139097), (1240, 130123), (1282, 125860), (1624, 99355), (1736, 92945), (1798, 89740), (2030, 79484), (2170, 74356), (2564, 62930), (3205, 50344), (3596, 44870), (4060, 39742), (4340, 37178), (4487, 35960), (4495, 35896), (5128, 31465), (6293, 25640), (6410, 25172), (7192, 22435), (8120, 19871), (8680, 18589), (8974, 17980), (8990, 17948), (12586, 12820)]