128578700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 316646400

約数和(自身を除く): 188067700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 37, 38, 50, 59, 62, 74, 76, 95, 100, 118, 124, 148, 155, 185, 190, 236, 295, 310, 370, 380, 475, 589, 590, 620, 703, 740, 775, 925, 950, 1121, 1147, 1178, 1180, 1406, 1475, 1550, 1829, 1850, 1900, 2183, 2242, 2294, 2356, 2812, 2945, 2950, 3100, 3515, 3658, 3700, 4366, 4484, 4588, 5605, 5735, 5890, 5900, 7030, 7316, 8732, 9145, 10915, 11210, 11470, 11780, 14060, 14725, 17575, 18290, 21793, 21830, 22420, 22940, 28025, 28675, 29450, 34751, 35150, 36580, 41477, 43586, 43660, 45725, 54575, 56050, 57350, 58900, 67673, 69502, 70300, 82954, 87172, 91450, 108965, 109150, 112100, 114700, 135346, 139004, 165908, 173755, 182900, 207385, 217930, 218300, 270692, 338365, 347510, 414770, 435860, 544825, 676730, 695020, 829540, 868775, 1036925, 1089650, 1285787, 1353460, 1691825, 1737550, 2073850, 2179300, 2571574, 3383650, 3475100, 4147700, 5143148, 6428935, 6767300, 12857870, 25715740, 32144675, 64289350, 128578700]

約数ペア:

[(1, 128578700), (2, 64289350), (4, 32144675), (5, 25715740), (10, 12857870), (19, 6767300), (20, 6428935), (25, 5143148), (31, 4147700), (37, 3475100), (38, 3383650), (50, 2571574), (59, 2179300), (62, 2073850), (74, 1737550), (76, 1691825), (95, 1353460), (100, 1285787), (118, 1089650), (124, 1036925), (148, 868775), (155, 829540), (185, 695020), (190, 676730), (236, 544825), (295, 435860), (310, 414770), (370, 347510), (380, 338365), (475, 270692), (589, 218300), (590, 217930), (620, 207385), (703, 182900), (740, 173755), (775, 165908), (925, 139004), (950, 135346), (1121, 114700), (1147, 112100), (1178, 109150), (1180, 108965), (1406, 91450), (1475, 87172), (1550, 82954), (1829, 70300), (1850, 69502), (1900, 67673), (2183, 58900), (2242, 57350), (2294, 56050), (2356, 54575), (2812, 45725), (2945, 43660), (2950, 43586), (3100, 41477), (3515, 36580), (3658, 35150), (3700, 34751), (4366, 29450), (4484, 28675), (4588, 28025), (5605, 22940), (5735, 22420), (5890, 21830), (5900, 21793), (7030, 18290), (7316, 17575), (8732, 14725), (9145, 14060), (10915, 11780), (11210, 11470)]