28306564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 64012032

約数和(自身を除く): 35705468

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 41, 44, 52, 68, 71, 82, 142, 143, 164, 187, 221, 284, 286, 374, 442, 451, 533, 572, 697, 748, 781, 884, 902, 923, 1066, 1207, 1394, 1562, 1804, 1846, 2132, 2414, 2431, 2788, 2911, 3124, 3692, 4828, 4862, 5822, 5863, 7667, 9061, 9724, 10153, 11644, 11726, 13277, 15334, 15691, 18122, 20306, 23452, 26554, 30668, 31382, 32021, 36244, 37843, 40612, 49487, 53108, 62764, 64042, 75686, 98974, 99671, 128084, 151372, 172601, 197948, 199342, 345202, 398684, 416273, 544357, 643331, 690404, 832546, 1088714, 1286662, 1665092, 2177428, 2573324, 7076641, 14153282, 28306564]

約数ペア:

[(1, 28306564), (2, 14153282), (4, 7076641), (11, 2573324), (13, 2177428), (17, 1665092), (22, 1286662), (26, 1088714), (34, 832546), (41, 690404), (44, 643331), (52, 544357), (68, 416273), (71, 398684), (82, 345202), (142, 199342), (143, 197948), (164, 172601), (187, 151372), (221, 128084), (284, 99671), (286, 98974), (374, 75686), (442, 64042), (451, 62764), (533, 53108), (572, 49487), (697, 40612), (748, 37843), (781, 36244), (884, 32021), (902, 31382), (923, 30668), (1066, 26554), (1207, 23452), (1394, 20306), (1562, 18122), (1804, 15691), (1846, 15334), (2132, 13277), (2414, 11726), (2431, 11644), (2788, 10153), (2911, 9724), (3124, 9061), (3692, 7667), (4828, 5863), (4862, 5822)]