1998073980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^2\times {\mathrm{25171}}^1$

素因数の和:25206

約数の個数: 180

約数和(自身を含む): 7291673928

約数和(自身を除く): 5293599948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 245, 252, 270, 294, 315, 324, 378, 405, 420, 441, 490, 540, 567, 588, 630, 735, 756, 810, 882, 945, 980, 1134, 1260, 1323, 1470, 1620, 1764, 1890, 2205, 2268, 2646, 2835, 2940, 3780, 3969, 4410, 5292, 5670, 6615, 7938, 8820, 11340, 13230, 15876, 19845, 25171, 26460, 39690, 50342, 75513, 79380, 100684, 125855, 151026, 176197, 226539, 251710, 302052, 352394, 377565, 453078, 503420, 528591, 679617, 704788, 755130, 880985, 906156, 1057182, 1132695, 1233379, 1359234, 1510260, 1585773, 1761970, 2038851, 2114364, 2265390, 2466758, 2642955, 2718468, 3171546, 3398085, 3523940, 3700137, 4077702, 4530780, 4757319, 4933516, 5285910, 6166895, 6343092, 6796170, 7400274, 7928865, 8155404, 9514638, 10194255, 10571820, 11100411, 12333790, 13592340, 14271957, 14800548, 15857730, 18500685, 19029276, 20388510, 22200822, 23786595, 24667580, 28543914, 31715460, 33301233, 37001370, 40777020, 44401644, 47573190, 55502055, 57087828, 66602466, 71359785, 74002740, 95146380, 99903699, 111004110, 133204932, 142719570, 166506165, 199807398, 222008220, 285439140, 333012330, 399614796, 499518495, 666024660, 999036990, 1998073980]

約数ペア:

[(1, 1998073980), (2, 999036990), (3, 666024660), (4, 499518495), (5, 399614796), (6, 333012330), (7, 285439140), (9, 222008220), (10, 199807398), (12, 166506165), (14, 142719570), (15, 133204932), (18, 111004110), (20, 99903699), (21, 95146380), (27, 74002740), (28, 71359785), (30, 66602466), (35, 57087828), (36, 55502055), (42, 47573190), (45, 44401644), (49, 40777020), (54, 37001370), (60, 33301233), (63, 31715460), (70, 28543914), (81, 24667580), (84, 23786595), (90, 22200822), (98, 20388510), (105, 19029276), (108, 18500685), (126, 15857730), (135, 14800548), (140, 14271957), (147, 13592340), (162, 12333790), (180, 11100411), (189, 10571820), (196, 10194255), (210, 9514638), (245, 8155404), (252, 7928865), (270, 7400274), (294, 6796170), (315, 6343092), (324, 6166895), (378, 5285910), (405, 4933516), (420, 4757319), (441, 4530780), (490, 4077702), (540, 3700137), (567, 3523940), (588, 3398085), (630, 3171546), (735, 2718468), (756, 2642955), (810, 2466758), (882, 2265390), (945, 2114364), (980, 2038851), (1134, 1761970), (1260, 1585773), (1323, 1510260), (1470, 1359234), (1620, 1233379), (1764, 1132695), (1890, 1057182), (2205, 906156), (2268, 880985), (2646, 755130), (2835, 704788), (2940, 679617), (3780, 528591), (3969, 503420), (4410, 453078), (5292, 377565), (5670, 352394), (6615, 302052), (7938, 251710), (8820, 226539), (11340, 176197), (13230, 151026), (15876, 125855), (19845, 100684), (25171, 79380), (26460, 75513), (39690, 50342)]