281980140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:456

約数の個数: 192

約数和(自身を含む): 914457600

約数和(自身を除く): 632477460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 53, 57, 60, 65, 76, 78, 95, 106, 114, 130, 156, 159, 190, 195, 212, 228, 247, 260, 265, 285, 318, 359, 380, 390, 494, 530, 570, 636, 689, 718, 741, 780, 795, 988, 1007, 1060, 1077, 1140, 1235, 1378, 1436, 1482, 1590, 1795, 2014, 2067, 2154, 2470, 2756, 2964, 3021, 3180, 3445, 3590, 3705, 4028, 4134, 4308, 4667, 4940, 5035, 5385, 6042, 6821, 6890, 7180, 7410, 8268, 9334, 10070, 10335, 10770, 12084, 13091, 13642, 13780, 14001, 14820, 15105, 18668, 19027, 20140, 20463, 20670, 21540, 23335, 26182, 27284, 28002, 30210, 34105, 38054, 39273, 40926, 41340, 46670, 52364, 56004, 57081, 60420, 65455, 68210, 70005, 76108, 78546, 81852, 88673, 93340, 95135, 102315, 114162, 130910, 136420, 140010, 157092, 177346, 190270, 196365, 204630, 228324, 247351, 261820, 266019, 280020, 285405, 354692, 361513, 380540, 392730, 409260, 443365, 494702, 532038, 570810, 723026, 742053, 785460, 886730, 989404, 1064076, 1084539, 1141620, 1236755, 1330095, 1446052, 1484106, 1773460, 1807565, 2169078, 2473510, 2660190, 2968212, 3615130, 3710265, 4338156, 4699669, 4947020, 5320380, 5422695, 7230260, 7420530, 9399338, 10845390, 14099007, 14841060, 18798676, 21690780, 23498345, 28198014, 46996690, 56396028, 70495035, 93993380, 140990070, 281980140]

約数ペア:

[(1, 281980140), (2, 140990070), (3, 93993380), (4, 70495035), (5, 56396028), (6, 46996690), (10, 28198014), (12, 23498345), (13, 21690780), (15, 18798676), (19, 14841060), (20, 14099007), (26, 10845390), (30, 9399338), (38, 7420530), (39, 7230260), (52, 5422695), (53, 5320380), (57, 4947020), (60, 4699669), (65, 4338156), (76, 3710265), (78, 3615130), (95, 2968212), (106, 2660190), (114, 2473510), (130, 2169078), (156, 1807565), (159, 1773460), (190, 1484106), (195, 1446052), (212, 1330095), (228, 1236755), (247, 1141620), (260, 1084539), (265, 1064076), (285, 989404), (318, 886730), (359, 785460), (380, 742053), (390, 723026), (494, 570810), (530, 532038), (570, 494702), (636, 443365), (689, 409260), (718, 392730), (741, 380540), (780, 361513), (795, 354692), (988, 285405), (1007, 280020), (1060, 266019), (1077, 261820), (1140, 247351), (1235, 228324), (1378, 204630), (1436, 196365), (1482, 190270), (1590, 177346), (1795, 157092), (2014, 140010), (2067, 136420), (2154, 130910), (2470, 114162), (2756, 102315), (2964, 95135), (3021, 93340), (3180, 88673), (3445, 81852), (3590, 78546), (3705, 76108), (4028, 70005), (4134, 68210), (4308, 65455), (4667, 60420), (4940, 57081), (5035, 56004), (5385, 52364), (6042, 46670), (6821, 41340), (6890, 40926), (7180, 39273), (7410, 38054), (8268, 34105), (9334, 30210), (10070, 28002), (10335, 27284), (10770, 26182), (12084, 23335), (13091, 21540), (13642, 20670), (13780, 20463), (14001, 20140), (14820, 19027), (15105, 18668)]