1281961600

素因数分解:

$2^7\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12923}}^1$

素因数の和:12978

約数の個数: 96

約数和(自身を含む): 3269255040

約数和(自身を除く): 1987293440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 310, 320, 400, 496, 620, 640, 775, 800, 992, 1240, 1550, 1600, 1984, 2480, 3100, 3200, 3968, 4960, 6200, 9920, 12400, 12923, 19840, 24800, 25846, 49600, 51692, 64615, 99200, 103384, 129230, 206768, 258460, 323075, 400613, 413536, 516920, 646150, 801226, 827072, 1033840, 1292300, 1602452, 1654144, 2003065, 2067680, 2584600, 3204904, 4006130, 4135360, 5169200, 6409808, 8012260, 8270720, 10015325, 10338400, 12819616, 16024520, 20030650, 20676800, 25639232, 32049040, 40061300, 41353600, 51278464, 64098080, 80122600, 128196160, 160245200, 256392320, 320490400, 640980800, 1281961600]

約数ペア:

[(1, 1281961600), (2, 640980800), (4, 320490400), (5, 256392320), (8, 160245200), (10, 128196160), (16, 80122600), (20, 64098080), (25, 51278464), (31, 41353600), (32, 40061300), (40, 32049040), (50, 25639232), (62, 20676800), (64, 20030650), (80, 16024520), (100, 12819616), (124, 10338400), (128, 10015325), (155, 8270720), (160, 8012260), (200, 6409808), (248, 5169200), (310, 4135360), (320, 4006130), (400, 3204904), (496, 2584600), (620, 2067680), (640, 2003065), (775, 1654144), (800, 1602452), (992, 1292300), (1240, 1033840), (1550, 827072), (1600, 801226), (1984, 646150), (2480, 516920), (3100, 413536), (3200, 400613), (3968, 323075), (4960, 258460), (6200, 206768), (9920, 129230), (12400, 103384), (12923, 99200), (19840, 64615), (24800, 51692), (25846, 49600)]