1640958720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{427333}}^1$

素因数の和:427357

約数の個数: 72

約数和(自身を含む): 5240824176

約数和(自身を除く): 3599865456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 427333, 854666, 1281999, 1709332, 2136665, 2563998, 3418664, 4273330, 5127996, 6409995, 6837328, 8546660, 10255992, 12819990, 13674656, 17093320, 20511984, 25639980, 27349312, 34186640, 41023968, 51279960, 54698624, 68373280, 82047936, 102559920, 109397248, 136746560, 164095872, 205119840, 273493120, 328191744, 410239680, 546986240, 820479360, 1640958720]

約数ペア:

[(1, 1640958720), (2, 820479360), (3, 546986240), (4, 410239680), (5, 328191744), (6, 273493120), (8, 205119840), (10, 164095872), (12, 136746560), (15, 109397248), (16, 102559920), (20, 82047936), (24, 68373280), (30, 54698624), (32, 51279960), (40, 41023968), (48, 34186640), (60, 27349312), (64, 25639980), (80, 20511984), (96, 17093320), (120, 13674656), (128, 12819990), (160, 10255992), (192, 8546660), (240, 6837328), (256, 6409995), (320, 5127996), (384, 4273330), (480, 3418664), (640, 2563998), (768, 2136665), (960, 1709332), (1280, 1281999), (1920, 854666), (3840, 427333)]