72181440

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:447

約数の個数: 168

約数和(自身を含む): 252484128

約数和(自身を除く): 180302688

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 192, 213, 240, 284, 288, 320, 353, 355, 360, 426, 480, 568, 576, 639, 706, 710, 720, 852, 960, 1059, 1065, 1136, 1278, 1412, 1420, 1440, 1704, 1765, 2118, 2130, 2272, 2556, 2824, 2840, 2880, 3177, 3195, 3408, 3530, 4236, 4260, 4544, 5112, 5295, 5648, 5680, 6354, 6390, 6816, 7060, 8472, 8520, 10224, 10590, 11296, 11360, 12708, 12780, 13632, 14120, 15885, 16944, 17040, 20448, 21180, 22592, 22720, 25063, 25416, 25560, 28240, 31770, 33888, 34080, 40896, 42360, 50126, 50832, 51120, 56480, 63540, 67776, 68160, 75189, 84720, 100252, 101664, 102240, 112960, 125315, 127080, 150378, 169440, 200504, 203328, 204480, 225567, 250630, 254160, 300756, 338880, 375945, 401008, 451134, 501260, 508320, 601512, 751890, 802016, 902268, 1002520, 1016640, 1127835, 1203024, 1503780, 1604032, 1804536, 2005040, 2255670, 2406048, 3007560, 3609072, 4010080, 4511340, 4812096, 6015120, 7218144, 8020160, 9022680, 12030240, 14436288, 18045360, 24060480, 36090720, 72181440]

約数ペア:

[(1, 72181440), (2, 36090720), (3, 24060480), (4, 18045360), (5, 14436288), (6, 12030240), (8, 9022680), (9, 8020160), (10, 7218144), (12, 6015120), (15, 4812096), (16, 4511340), (18, 4010080), (20, 3609072), (24, 3007560), (30, 2406048), (32, 2255670), (36, 2005040), (40, 1804536), (45, 1604032), (48, 1503780), (60, 1203024), (64, 1127835), (71, 1016640), (72, 1002520), (80, 902268), (90, 802016), (96, 751890), (120, 601512), (142, 508320), (144, 501260), (160, 451134), (180, 401008), (192, 375945), (213, 338880), (240, 300756), (284, 254160), (288, 250630), (320, 225567), (353, 204480), (355, 203328), (360, 200504), (426, 169440), (480, 150378), (568, 127080), (576, 125315), (639, 112960), (706, 102240), (710, 101664), (720, 100252), (852, 84720), (960, 75189), (1059, 68160), (1065, 67776), (1136, 63540), (1278, 56480), (1412, 51120), (1420, 50832), (1440, 50126), (1704, 42360), (1765, 40896), (2118, 34080), (2130, 33888), (2272, 31770), (2556, 28240), (2824, 25560), (2840, 25416), (2880, 25063), (3177, 22720), (3195, 22592), (3408, 21180), (3530, 20448), (4236, 17040), (4260, 16944), (4544, 15885), (5112, 14120), (5295, 13632), (5648, 12780), (5680, 12708), (6354, 11360), (6390, 11296), (6816, 10590), (7060, 10224), (8472, 8520)]