20053740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:404

約数の個数: 144

約数和(自身を含む): 68947200

約数和(自身を除く): 48893460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 359, 380, 399, 420, 490, 532, 570, 588, 665, 718, 735, 798, 931, 980, 1077, 1140, 1330, 1436, 1470, 1596, 1795, 1862, 1995, 2154, 2513, 2660, 2793, 2940, 3590, 3724, 3990, 4308, 4655, 5026, 5385, 5586, 6821, 7180, 7539, 7980, 9310, 10052, 10770, 11172, 12565, 13642, 13965, 15078, 17591, 18620, 20463, 21540, 25130, 27284, 27930, 30156, 34105, 35182, 37695, 40926, 47747, 50260, 52773, 55860, 68210, 70364, 75390, 81852, 87955, 95494, 102315, 105546, 136420, 143241, 150780, 175910, 190988, 204630, 211092, 238735, 263865, 286482, 334229, 351820, 409260, 477470, 527730, 572964, 668458, 716205, 954940, 1002687, 1055460, 1336916, 1432410, 1671145, 2005374, 2864820, 3342290, 4010748, 5013435, 6684580, 10026870, 20053740]

約数ペア:

[(1, 20053740), (2, 10026870), (3, 6684580), (4, 5013435), (5, 4010748), (6, 3342290), (7, 2864820), (10, 2005374), (12, 1671145), (14, 1432410), (15, 1336916), (19, 1055460), (20, 1002687), (21, 954940), (28, 716205), (30, 668458), (35, 572964), (38, 527730), (42, 477470), (49, 409260), (57, 351820), (60, 334229), (70, 286482), (76, 263865), (84, 238735), (95, 211092), (98, 204630), (105, 190988), (114, 175910), (133, 150780), (140, 143241), (147, 136420), (190, 105546), (196, 102315), (210, 95494), (228, 87955), (245, 81852), (266, 75390), (285, 70364), (294, 68210), (359, 55860), (380, 52773), (399, 50260), (420, 47747), (490, 40926), (532, 37695), (570, 35182), (588, 34105), (665, 30156), (718, 27930), (735, 27284), (798, 25130), (931, 21540), (980, 20463), (1077, 18620), (1140, 17591), (1330, 15078), (1436, 13965), (1470, 13642), (1596, 12565), (1795, 11172), (1862, 10770), (1995, 10052), (2154, 9310), (2513, 7980), (2660, 7539), (2793, 7180), (2940, 6821), (3590, 5586), (3724, 5385), (3990, 5026), (4308, 4655)]