287581980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3373}}^1$

素因数の和:3428

約数の個数: 144

約数和(自身を含む): 969282720

約数和(自身を除く): 681700740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 58, 60, 70, 84, 87, 98, 105, 116, 140, 145, 147, 174, 196, 203, 210, 245, 290, 294, 348, 406, 420, 435, 490, 580, 588, 609, 735, 812, 870, 980, 1015, 1218, 1421, 1470, 1740, 2030, 2436, 2842, 2940, 3045, 3373, 4060, 4263, 5684, 6090, 6746, 7105, 8526, 10119, 12180, 13492, 14210, 16865, 17052, 20238, 21315, 23611, 28420, 33730, 40476, 42630, 47222, 50595, 67460, 70833, 85260, 94444, 97817, 101190, 118055, 141666, 165277, 195634, 202380, 236110, 283332, 293451, 330554, 354165, 391268, 472220, 489085, 495831, 586902, 661108, 684719, 708330, 826385, 978170, 991662, 1173804, 1369438, 1416660, 1467255, 1652770, 1956340, 1983324, 2054157, 2479155, 2738876, 2934510, 3305540, 3423595, 4108314, 4793033, 4958310, 5869020, 6847190, 8216628, 9586066, 9916620, 10270785, 13694380, 14379099, 19172132, 20541570, 23965165, 28758198, 41083140, 47930330, 57516396, 71895495, 95860660, 143790990, 287581980]

約数ペア:

[(1, 287581980), (2, 143790990), (3, 95860660), (4, 71895495), (5, 57516396), (6, 47930330), (7, 41083140), (10, 28758198), (12, 23965165), (14, 20541570), (15, 19172132), (20, 14379099), (21, 13694380), (28, 10270785), (29, 9916620), (30, 9586066), (35, 8216628), (42, 6847190), (49, 5869020), (58, 4958310), (60, 4793033), (70, 4108314), (84, 3423595), (87, 3305540), (98, 2934510), (105, 2738876), (116, 2479155), (140, 2054157), (145, 1983324), (147, 1956340), (174, 1652770), (196, 1467255), (203, 1416660), (210, 1369438), (245, 1173804), (290, 991662), (294, 978170), (348, 826385), (406, 708330), (420, 684719), (435, 661108), (490, 586902), (580, 495831), (588, 489085), (609, 472220), (735, 391268), (812, 354165), (870, 330554), (980, 293451), (1015, 283332), (1218, 236110), (1421, 202380), (1470, 195634), (1740, 165277), (2030, 141666), (2436, 118055), (2842, 101190), (2940, 97817), (3045, 94444), (3373, 85260), (4060, 70833), (4263, 67460), (5684, 50595), (6090, 47222), (6746, 42630), (7105, 40476), (8526, 33730), (10119, 28420), (12180, 23611), (13492, 21315), (14210, 20238), (16865, 17052)]