161181990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:646

約数の個数: 96

約数和(自身を含む): 435708000

約数和(自身を除く): 274526010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 90, 97, 111, 185, 194, 222, 291, 333, 370, 485, 499, 555, 582, 666, 873, 970, 998, 1110, 1455, 1497, 1665, 1746, 2495, 2910, 2994, 3330, 3589, 4365, 4491, 4990, 7178, 7485, 8730, 8982, 10767, 14970, 17945, 18463, 21534, 22455, 32301, 35890, 36926, 44910, 48403, 53835, 55389, 64602, 92315, 96806, 107670, 110778, 145209, 161505, 166167, 184630, 242015, 276945, 290418, 323010, 332334, 435627, 484030, 553890, 726045, 830835, 871254, 1452090, 1661670, 1790911, 2178135, 3581822, 4356270, 5372733, 8954555, 10745466, 16118199, 17909110, 26863665, 32236398, 53727330, 80590995, 161181990]

約数ペア:

[(1, 161181990), (2, 80590995), (3, 53727330), (5, 32236398), (6, 26863665), (9, 17909110), (10, 16118199), (15, 10745466), (18, 8954555), (30, 5372733), (37, 4356270), (45, 3581822), (74, 2178135), (90, 1790911), (97, 1661670), (111, 1452090), (185, 871254), (194, 830835), (222, 726045), (291, 553890), (333, 484030), (370, 435627), (485, 332334), (499, 323010), (555, 290418), (582, 276945), (666, 242015), (873, 184630), (970, 166167), (998, 161505), (1110, 145209), (1455, 110778), (1497, 107670), (1665, 96806), (1746, 92315), (2495, 64602), (2910, 55389), (2994, 53835), (3330, 48403), (3589, 44910), (4365, 36926), (4491, 35890), (4990, 32301), (7178, 22455), (7485, 21534), (8730, 18463), (8982, 17945), (10767, 14970)]