1916579500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:521

約数の個数: 144

約数和(自身を含む): 4670789760

約数和(自身を除く): 2754210260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 121, 125, 158, 220, 242, 250, 275, 316, 395, 401, 484, 500, 550, 605, 790, 802, 869, 1100, 1210, 1375, 1580, 1604, 1738, 1975, 2005, 2420, 2750, 3025, 3476, 3950, 4010, 4345, 4411, 5500, 6050, 7900, 8020, 8690, 8822, 9559, 9875, 10025, 12100, 15125, 17380, 17644, 19118, 19750, 20050, 21725, 22055, 30250, 31679, 38236, 39500, 40100, 43450, 44110, 47795, 48521, 50125, 60500, 63358, 86900, 88220, 95590, 97042, 100250, 108625, 110275, 126716, 158395, 191180, 194084, 200500, 217250, 220550, 238975, 242605, 316790, 348469, 434500, 441100, 477950, 485210, 551375, 633580, 696938, 791975, 955900, 970420, 1102750, 1194875, 1213025, 1393876, 1583950, 1742345, 2205500, 2389750, 2426050, 3167900, 3484690, 3833159, 3959875, 4779500, 4852100, 6065125, 6969380, 7666318, 7919750, 8711725, 12130250, 15332636, 15839500, 17423450, 19165795, 24260500, 34846900, 38331590, 43558625, 76663180, 87117250, 95828975, 174234500, 191657950, 383315900, 479144875, 958289750, 1916579500]

約数ペア:

[(1, 1916579500), (2, 958289750), (4, 479144875), (5, 383315900), (10, 191657950), (11, 174234500), (20, 95828975), (22, 87117250), (25, 76663180), (44, 43558625), (50, 38331590), (55, 34846900), (79, 24260500), (100, 19165795), (110, 17423450), (121, 15839500), (125, 15332636), (158, 12130250), (220, 8711725), (242, 7919750), (250, 7666318), (275, 6969380), (316, 6065125), (395, 4852100), (401, 4779500), (484, 3959875), (500, 3833159), (550, 3484690), (605, 3167900), (790, 2426050), (802, 2389750), (869, 2205500), (1100, 1742345), (1210, 1583950), (1375, 1393876), (1580, 1213025), (1604, 1194875), (1738, 1102750), (1975, 970420), (2005, 955900), (2420, 791975), (2750, 696938), (3025, 633580), (3476, 551375), (3950, 485210), (4010, 477950), (4345, 441100), (4411, 434500), (5500, 348469), (6050, 316790), (7900, 242605), (8020, 238975), (8690, 220550), (8822, 217250), (9559, 200500), (9875, 194084), (10025, 191180), (12100, 158395), (15125, 126716), (17380, 110275), (17644, 108625), (19118, 100250), (19750, 97042), (20050, 95590), (21725, 88220), (22055, 86900), (30250, 63358), (31679, 60500), (38236, 50125), (39500, 48521), (40100, 47795), (43450, 44110)]