12920223040

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2375041}}^1$

素因数の和:2375075

約数の個数: 56

約数和(自身を含む): 32576076072

約数和(自身を除く): 19655853032

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5440, 2375041, 4750082, 9500164, 11875205, 19000328, 23750410, 38000656, 40375697, 47500820, 76001312, 80751394, 95001640, 152002624, 161502788, 190003280, 201878485, 323005576, 380006560, 403756970, 646011152, 760013120, 807513940, 1292022304, 1615027880, 2584044608, 3230055760, 6460111520, 12920223040]

約数ペア:

[(1, 12920223040), (2, 6460111520), (4, 3230055760), (5, 2584044608), (8, 1615027880), (10, 1292022304), (16, 807513940), (17, 760013120), (20, 646011152), (32, 403756970), (34, 380006560), (40, 323005576), (64, 201878485), (68, 190003280), (80, 161502788), (85, 152002624), (136, 95001640), (160, 80751394), (170, 76001312), (272, 47500820), (320, 40375697), (340, 38000656), (544, 23750410), (680, 19000328), (1088, 11875205), (1360, 9500164), (2720, 4750082), (5440, 2375041)]