18731720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:547

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 32978680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 503, 532, 665, 760, 931, 980, 1006, 1064, 1330, 1862, 1960, 2012, 2515, 2660, 3521, 3724, 4024, 4655, 5030, 5320, 7042, 7448, 9310, 9557, 10060, 14084, 17605, 18620, 19114, 20120, 24647, 28168, 35210, 37240, 38228, 47785, 49294, 66899, 70420, 76456, 95570, 98588, 123235, 133798, 140840, 191140, 197176, 246470, 267596, 334495, 382280, 468293, 492940, 535192, 668990, 936586, 985880, 1337980, 1873172, 2341465, 2675960, 3746344, 4682930, 9365860, 18731720]

約数ペア:

[(1, 18731720), (2, 9365860), (4, 4682930), (5, 3746344), (7, 2675960), (8, 2341465), (10, 1873172), (14, 1337980), (19, 985880), (20, 936586), (28, 668990), (35, 535192), (38, 492940), (40, 468293), (49, 382280), (56, 334495), (70, 267596), (76, 246470), (95, 197176), (98, 191140), (133, 140840), (140, 133798), (152, 123235), (190, 98588), (196, 95570), (245, 76456), (266, 70420), (280, 66899), (380, 49294), (392, 47785), (490, 38228), (503, 37240), (532, 35210), (665, 28168), (760, 24647), (931, 20120), (980, 19114), (1006, 18620), (1064, 17605), (1330, 14084), (1862, 10060), (1960, 9557), (2012, 9310), (2515, 7448), (2660, 7042), (3521, 5320), (3724, 5030), (4024, 4655)]