1638379600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28643}}^1$

素因数の和:28685

約数の個数: 120

約数和(自身を含む): 4624516512

約数和(自身を除く): 2986136912

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 80, 88, 100, 104, 110, 130, 143, 176, 200, 208, 220, 260, 275, 286, 325, 400, 440, 520, 550, 572, 650, 715, 880, 1040, 1100, 1144, 1300, 1430, 2200, 2288, 2600, 2860, 3575, 4400, 5200, 5720, 7150, 11440, 14300, 28600, 28643, 57200, 57286, 114572, 143215, 229144, 286430, 315073, 372359, 458288, 572860, 630146, 716075, 744718, 1145720, 1260292, 1432150, 1489436, 1575365, 1861795, 2291440, 2520584, 2864300, 2978872, 3150730, 3723590, 4095949, 5041168, 5728600, 5957744, 6301460, 7447180, 7876825, 8191898, 9308975, 11457200, 12602920, 14894360, 15753650, 16383796, 18617950, 20479745, 25205840, 29788720, 31507300, 32767592, 37235900, 40959490, 63014600, 65535184, 74471800, 81918980, 102398725, 126029200, 148943600, 163837960, 204797450, 327675920, 409594900, 819189800, 1638379600]

約数ペア:

[(1, 1638379600), (2, 819189800), (4, 409594900), (5, 327675920), (8, 204797450), (10, 163837960), (11, 148943600), (13, 126029200), (16, 102398725), (20, 81918980), (22, 74471800), (25, 65535184), (26, 63014600), (40, 40959490), (44, 37235900), (50, 32767592), (52, 31507300), (55, 29788720), (65, 25205840), (80, 20479745), (88, 18617950), (100, 16383796), (104, 15753650), (110, 14894360), (130, 12602920), (143, 11457200), (176, 9308975), (200, 8191898), (208, 7876825), (220, 7447180), (260, 6301460), (275, 5957744), (286, 5728600), (325, 5041168), (400, 4095949), (440, 3723590), (520, 3150730), (550, 2978872), (572, 2864300), (650, 2520584), (715, 2291440), (880, 1861795), (1040, 1575365), (1100, 1489436), (1144, 1432150), (1300, 1260292), (1430, 1145720), (2200, 744718), (2288, 716075), (2600, 630146), (2860, 572860), (3575, 458288), (4400, 372359), (5200, 315073), (5720, 286430), (7150, 229144), (11440, 143215), (14300, 114572), (28600, 57286), (28643, 57200)]