28305381780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1553}}^1\times {\mathrm{7789}}^1$

素因数の和:9370

約数の個数: 144

約数和(自身を含む): 92535665040

約数和(自身を除く): 64230283260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 1553, 2340, 3106, 4659, 6212, 7765, 7789, 9318, 13977, 15530, 15578, 18636, 20189, 23295, 23367, 27954, 31060, 31156, 38945, 40378, 46590, 46734, 55908, 60567, 69885, 70101, 77890, 80756, 93180, 93468, 100945, 101257, 116835, 121134, 139770, 140202, 155780, 181701, 201890, 202514, 233670, 242268, 279540, 280404, 302835, 303771, 350505, 363402, 403780, 405028, 467340, 506285, 605670, 607542, 701010, 726804, 908505, 911313, 1012570, 1211340, 1215084, 1402020, 1518855, 1817010, 1822626, 2025140, 3037710, 3634020, 3645252, 4556565, 6075420, 9113130, 12096317, 18226260, 24192634, 36288951, 48385268, 60481585, 72577902, 108866853, 120963170, 145155804, 157252121, 181444755, 217733706, 241926340, 314504242, 362889510, 435467412, 471756363, 544334265, 629008484, 725779020, 786260605, 943512726, 1088668530, 1415269089, 1572521210, 1887025452, 2177337060, 2358781815, 2830538178, 3145042420, 4717563630, 5661076356, 7076345445, 9435127260, 14152690890, 28305381780]

約数ペア:

[(1, 28305381780), (2, 14152690890), (3, 9435127260), (4, 7076345445), (5, 5661076356), (6, 4717563630), (9, 3145042420), (10, 2830538178), (12, 2358781815), (13, 2177337060), (15, 1887025452), (18, 1572521210), (20, 1415269089), (26, 1088668530), (30, 943512726), (36, 786260605), (39, 725779020), (45, 629008484), (52, 544334265), (60, 471756363), (65, 435467412), (78, 362889510), (90, 314504242), (117, 241926340), (130, 217733706), (156, 181444755), (180, 157252121), (195, 145155804), (234, 120963170), (260, 108866853), (390, 72577902), (468, 60481585), (585, 48385268), (780, 36288951), (1170, 24192634), (1553, 18226260), (2340, 12096317), (3106, 9113130), (4659, 6075420), (6212, 4556565), (7765, 3645252), (7789, 3634020), (9318, 3037710), (13977, 2025140), (15530, 1822626), (15578, 1817010), (18636, 1518855), (20189, 1402020), (23295, 1215084), (23367, 1211340), (27954, 1012570), (31060, 911313), (31156, 908505), (38945, 726804), (40378, 701010), (46590, 607542), (46734, 605670), (55908, 506285), (60567, 467340), (69885, 405028), (70101, 403780), (77890, 363402), (80756, 350505), (93180, 303771), (93468, 302835), (100945, 280404), (101257, 279540), (116835, 242268), (121134, 233670), (139770, 202514), (140202, 201890), (155780, 181701)]