77881140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 247390416

約数和(自身を除く): 169509276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 61, 82, 90, 122, 123, 164, 173, 180, 183, 205, 244, 246, 305, 346, 366, 369, 410, 492, 519, 549, 610, 615, 692, 732, 738, 820, 865, 915, 1038, 1098, 1220, 1230, 1476, 1557, 1730, 1830, 1845, 2076, 2196, 2460, 2501, 2595, 2745, 3114, 3460, 3660, 3690, 5002, 5190, 5490, 6228, 7093, 7380, 7503, 7785, 10004, 10380, 10553, 10980, 12505, 14186, 15006, 15570, 21106, 21279, 22509, 25010, 28372, 30012, 31140, 31659, 35465, 37515, 42212, 42558, 45018, 50020, 52765, 63318, 63837, 70930, 75030, 85116, 90036, 94977, 105530, 106395, 112545, 126636, 127674, 141860, 150060, 158295, 189954, 211060, 212790, 225090, 255348, 316590, 319185, 379908, 425580, 432673, 450180, 474885, 633180, 638370, 865346, 949770, 1276740, 1298019, 1730692, 1899540, 2163365, 2596038, 3894057, 4326730, 5192076, 6490095, 7788114, 8653460, 12980190, 15576228, 19470285, 25960380, 38940570, 77881140]

約数ペア:

[(1, 77881140), (2, 38940570), (3, 25960380), (4, 19470285), (5, 15576228), (6, 12980190), (9, 8653460), (10, 7788114), (12, 6490095), (15, 5192076), (18, 4326730), (20, 3894057), (30, 2596038), (36, 2163365), (41, 1899540), (45, 1730692), (60, 1298019), (61, 1276740), (82, 949770), (90, 865346), (122, 638370), (123, 633180), (164, 474885), (173, 450180), (180, 432673), (183, 425580), (205, 379908), (244, 319185), (246, 316590), (305, 255348), (346, 225090), (366, 212790), (369, 211060), (410, 189954), (492, 158295), (519, 150060), (549, 141860), (610, 127674), (615, 126636), (692, 112545), (732, 106395), (738, 105530), (820, 94977), (865, 90036), (915, 85116), (1038, 75030), (1098, 70930), (1220, 63837), (1230, 63318), (1476, 52765), (1557, 50020), (1730, 45018), (1830, 42558), (1845, 42212), (2076, 37515), (2196, 35465), (2460, 31659), (2501, 31140), (2595, 30012), (2745, 28372), (3114, 25010), (3460, 22509), (3660, 21279), (3690, 21106), (5002, 15570), (5190, 15006), (5490, 14186), (6228, 12505), (7093, 10980), (7380, 10553), (7503, 10380), (7785, 10004)]