8405820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 28068768

約数和(自身を除く): 19662948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 41, 45, 51, 60, 67, 68, 82, 85, 90, 102, 123, 134, 153, 164, 170, 180, 201, 204, 205, 246, 255, 268, 306, 335, 340, 369, 402, 410, 492, 510, 603, 612, 615, 670, 697, 738, 765, 804, 820, 1005, 1020, 1139, 1206, 1230, 1340, 1394, 1476, 1530, 1845, 2010, 2091, 2278, 2412, 2460, 2747, 2788, 3015, 3060, 3417, 3485, 3690, 4020, 4182, 4556, 5494, 5695, 6030, 6273, 6834, 6970, 7380, 8241, 8364, 10251, 10455, 10988, 11390, 12060, 12546, 13668, 13735, 13940, 16482, 17085, 20502, 20910, 22780, 24723, 25092, 27470, 31365, 32964, 34170, 41004, 41205, 41820, 46699, 49446, 51255, 54940, 62730, 68340, 82410, 93398, 98892, 102510, 123615, 125460, 140097, 164820, 186796, 205020, 233495, 247230, 280194, 420291, 466990, 494460, 560388, 700485, 840582, 933980, 1400970, 1681164, 2101455, 2801940, 4202910, 8405820]

約数ペア:

[(1, 8405820), (2, 4202910), (3, 2801940), (4, 2101455), (5, 1681164), (6, 1400970), (9, 933980), (10, 840582), (12, 700485), (15, 560388), (17, 494460), (18, 466990), (20, 420291), (30, 280194), (34, 247230), (36, 233495), (41, 205020), (45, 186796), (51, 164820), (60, 140097), (67, 125460), (68, 123615), (82, 102510), (85, 98892), (90, 93398), (102, 82410), (123, 68340), (134, 62730), (153, 54940), (164, 51255), (170, 49446), (180, 46699), (201, 41820), (204, 41205), (205, 41004), (246, 34170), (255, 32964), (268, 31365), (306, 27470), (335, 25092), (340, 24723), (369, 22780), (402, 20910), (410, 20502), (492, 17085), (510, 16482), (603, 13940), (612, 13735), (615, 13668), (670, 12546), (697, 12060), (738, 11390), (765, 10988), (804, 10455), (820, 10251), (1005, 8364), (1020, 8241), (1139, 7380), (1206, 6970), (1230, 6834), (1340, 6273), (1394, 6030), (1476, 5695), (1530, 5494), (1845, 4556), (2010, 4182), (2091, 4020), (2278, 3690), (2412, 3485), (2460, 3417), (2747, 3060), (2788, 3015)]