18173440

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:283

約数の個数: 80

約数和(自身を含む): 45175680

約数和(自身を除く): 27002240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 229, 248, 256, 310, 320, 458, 496, 512, 620, 640, 916, 992, 1145, 1240, 1280, 1832, 1984, 2290, 2480, 2560, 3664, 3968, 4580, 4960, 7099, 7328, 7936, 9160, 9920, 14198, 14656, 15872, 18320, 19840, 28396, 29312, 35495, 36640, 39680, 56792, 58624, 70990, 73280, 79360, 113584, 117248, 141980, 146560, 227168, 283960, 293120, 454336, 567920, 586240, 908672, 1135840, 1817344, 2271680, 3634688, 4543360, 9086720, 18173440]

約数ペア:

[(1, 18173440), (2, 9086720), (4, 4543360), (5, 3634688), (8, 2271680), (10, 1817344), (16, 1135840), (20, 908672), (31, 586240), (32, 567920), (40, 454336), (62, 293120), (64, 283960), (80, 227168), (124, 146560), (128, 141980), (155, 117248), (160, 113584), (229, 79360), (248, 73280), (256, 70990), (310, 58624), (320, 56792), (458, 39680), (496, 36640), (512, 35495), (620, 29312), (640, 28396), (916, 19840), (992, 18320), (1145, 15872), (1240, 14656), (1280, 14198), (1832, 9920), (1984, 9160), (2290, 7936), (2480, 7328), (2560, 7099), (3664, 4960), (3968, 4580)]