28339220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1$

素因数の和:729

約数の個数: 96

約数和(自身を含む): 76543488

約数和(自身を除く): 48204268

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 644, 677, 805, 910, 1196, 1354, 1495, 1610, 1820, 2093, 2708, 2990, 3220, 3385, 4186, 4739, 5980, 6770, 8372, 8801, 9478, 10465, 13540, 15571, 17602, 18956, 20930, 23695, 31142, 35204, 41860, 44005, 47390, 61607, 62284, 77855, 88010, 94780, 108997, 123214, 155710, 176020, 202423, 217994, 246428, 308035, 311420, 404846, 435988, 544985, 616070, 809692, 1012115, 1089970, 1232140, 1416961, 2024230, 2179940, 2833922, 4048460, 5667844, 7084805, 14169610, 28339220]

約数ペア:

[(1, 28339220), (2, 14169610), (4, 7084805), (5, 5667844), (7, 4048460), (10, 2833922), (13, 2179940), (14, 2024230), (20, 1416961), (23, 1232140), (26, 1089970), (28, 1012115), (35, 809692), (46, 616070), (52, 544985), (65, 435988), (70, 404846), (91, 311420), (92, 308035), (115, 246428), (130, 217994), (140, 202423), (161, 176020), (182, 155710), (230, 123214), (260, 108997), (299, 94780), (322, 88010), (364, 77855), (455, 62284), (460, 61607), (598, 47390), (644, 44005), (677, 41860), (805, 35204), (910, 31142), (1196, 23695), (1354, 20930), (1495, 18956), (1610, 17602), (1820, 15571), (2093, 13540), (2708, 10465), (2990, 9478), (3220, 8801), (3385, 8372), (4186, 6770), (4739, 5980)]