20384700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{571}}^1$

素因数の和:612

約数の個数: 144

約数和(自身を含む): 71495424

約数和(自身を除く): 51110724

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 25, 28, 30, 34, 35, 42, 50, 51, 60, 68, 70, 75, 84, 85, 100, 102, 105, 119, 140, 150, 170, 175, 204, 210, 238, 255, 300, 340, 350, 357, 420, 425, 476, 510, 525, 571, 595, 700, 714, 850, 1020, 1050, 1142, 1190, 1275, 1428, 1700, 1713, 1785, 2100, 2284, 2380, 2550, 2855, 2975, 3426, 3570, 3997, 5100, 5710, 5950, 6852, 7140, 7994, 8565, 8925, 9707, 11420, 11900, 11991, 14275, 15988, 17130, 17850, 19414, 19985, 23982, 28550, 29121, 34260, 35700, 38828, 39970, 42825, 47964, 48535, 57100, 58242, 59955, 67949, 79940, 85650, 97070, 99925, 116484, 119910, 135898, 145605, 171300, 194140, 199850, 203847, 239820, 242675, 271796, 291210, 299775, 339745, 399700, 407694, 485350, 582420, 599550, 679490, 728025, 815388, 970700, 1019235, 1199100, 1358980, 1456050, 1698725, 2038470, 2912100, 3397450, 4076940, 5096175, 6794900, 10192350, 20384700]

約数ペア:

[(1, 20384700), (2, 10192350), (3, 6794900), (4, 5096175), (5, 4076940), (6, 3397450), (7, 2912100), (10, 2038470), (12, 1698725), (14, 1456050), (15, 1358980), (17, 1199100), (20, 1019235), (21, 970700), (25, 815388), (28, 728025), (30, 679490), (34, 599550), (35, 582420), (42, 485350), (50, 407694), (51, 399700), (60, 339745), (68, 299775), (70, 291210), (75, 271796), (84, 242675), (85, 239820), (100, 203847), (102, 199850), (105, 194140), (119, 171300), (140, 145605), (150, 135898), (170, 119910), (175, 116484), (204, 99925), (210, 97070), (238, 85650), (255, 79940), (300, 67949), (340, 59955), (350, 58242), (357, 57100), (420, 48535), (425, 47964), (476, 42825), (510, 39970), (525, 38828), (571, 35700), (595, 34260), (700, 29121), (714, 28550), (850, 23982), (1020, 19985), (1050, 19414), (1142, 17850), (1190, 17130), (1275, 15988), (1428, 14275), (1700, 11991), (1713, 11900), (1785, 11420), (2100, 9707), (2284, 8925), (2380, 8565), (2550, 7994), (2855, 7140), (2975, 6852), (3426, 5950), (3570, 5710), (3997, 5100)]