28807740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{947}}^1$

素因数の和:988

約数の個数: 108

約数和(自身を含む): 94722264

約数和(自身を除く): 65914524

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, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 676, 780, 845, 947, 1014, 1170, 1521, 1690, 1894, 2028, 2340, 2535, 2841, 3042, 3380, 3788, 4735, 5070, 5682, 6084, 7605, 8523, 9470, 10140, 11364, 12311, 14205, 15210, 17046, 18940, 24622, 28410, 30420, 34092, 36933, 42615, 49244, 56820, 61555, 73866, 85230, 110799, 123110, 147732, 160043, 170460, 184665, 221598, 246220, 320086, 369330, 443196, 480129, 553995, 640172, 738660, 800215, 960258, 1107990, 1440387, 1600430, 1920516, 2215980, 2400645, 2880774, 3200860, 4801290, 5761548, 7201935, 9602580, 14403870, 28807740]

約数ペア:

[(1, 28807740), (2, 14403870), (3, 9602580), (4, 7201935), (5, 5761548), (6, 4801290), (9, 3200860), (10, 2880774), (12, 2400645), (13, 2215980), (15, 1920516), (18, 1600430), (20, 1440387), (26, 1107990), (30, 960258), (36, 800215), (39, 738660), (45, 640172), (52, 553995), (60, 480129), (65, 443196), (78, 369330), (90, 320086), (117, 246220), (130, 221598), (156, 184665), (169, 170460), (180, 160043), (195, 147732), (234, 123110), (260, 110799), (338, 85230), (390, 73866), (468, 61555), (507, 56820), (585, 49244), (676, 42615), (780, 36933), (845, 34092), (947, 30420), (1014, 28410), (1170, 24622), (1521, 18940), (1690, 17046), (1894, 15210), (2028, 14205), (2340, 12311), (2535, 11364), (2841, 10140), (3042, 9470), (3380, 8523), (3788, 7605), (4735, 6084), (5070, 5682)]