90719820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1289}}^1$

素因数の和:1344

約数の個数: 144

約数和(自身を含む): 304274880

約数和(自身を除く): 213555060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 30, 34, 36, 45, 46, 51, 60, 68, 69, 85, 90, 92, 102, 115, 138, 153, 170, 180, 204, 207, 230, 255, 276, 306, 340, 345, 391, 414, 460, 510, 612, 690, 765, 782, 828, 1020, 1035, 1173, 1289, 1380, 1530, 1564, 1955, 2070, 2346, 2578, 3060, 3519, 3867, 3910, 4140, 4692, 5156, 5865, 6445, 7038, 7734, 7820, 11601, 11730, 12890, 14076, 15468, 17595, 19335, 21913, 23202, 23460, 25780, 29647, 35190, 38670, 43826, 46404, 58005, 59294, 65739, 70380, 77340, 87652, 88941, 109565, 116010, 118588, 131478, 148235, 177882, 197217, 219130, 232020, 262956, 266823, 296470, 328695, 355764, 394434, 438260, 444705, 503999, 533646, 592940, 657390, 788868, 889410, 986085, 1007998, 1067292, 1314780, 1334115, 1511997, 1778820, 1972170, 2015996, 2519995, 2668230, 3023994, 3944340, 4535991, 5039990, 5336460, 6047988, 7559985, 9071982, 10079980, 15119970, 18143964, 22679955, 30239940, 45359910, 90719820]

約数ペア:

[(1, 90719820), (2, 45359910), (3, 30239940), (4, 22679955), (5, 18143964), (6, 15119970), (9, 10079980), (10, 9071982), (12, 7559985), (15, 6047988), (17, 5336460), (18, 5039990), (20, 4535991), (23, 3944340), (30, 3023994), (34, 2668230), (36, 2519995), (45, 2015996), (46, 1972170), (51, 1778820), (60, 1511997), (68, 1334115), (69, 1314780), (85, 1067292), (90, 1007998), (92, 986085), (102, 889410), (115, 788868), (138, 657390), (153, 592940), (170, 533646), (180, 503999), (204, 444705), (207, 438260), (230, 394434), (255, 355764), (276, 328695), (306, 296470), (340, 266823), (345, 262956), (391, 232020), (414, 219130), (460, 197217), (510, 177882), (612, 148235), (690, 131478), (765, 118588), (782, 116010), (828, 109565), (1020, 88941), (1035, 87652), (1173, 77340), (1289, 70380), (1380, 65739), (1530, 59294), (1564, 58005), (1955, 46404), (2070, 43826), (2346, 38670), (2578, 35190), (3060, 29647), (3519, 25780), (3867, 23460), (3910, 23202), (4140, 21913), (4692, 19335), (5156, 17595), (5865, 15468), (6445, 14076), (7038, 12890), (7734, 11730), (7820, 11601)]