78990990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3023}}^1$

素因数の和:3113

約数の個数: 64

約数和(自身を含む): 207277056

約数和(自身を除く): 128286066

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 67, 78, 130, 134, 195, 201, 335, 390, 402, 670, 871, 1005, 1742, 2010, 2613, 3023, 4355, 5226, 6046, 8710, 9069, 13065, 15115, 18138, 26130, 30230, 39299, 45345, 78598, 90690, 117897, 196495, 202541, 235794, 392990, 405082, 589485, 607623, 1012705, 1178970, 1215246, 2025410, 2633033, 3038115, 5266066, 6076230, 7899099, 13165165, 15798198, 26330330, 39495495, 78990990]

約数ペア:

[(1, 78990990), (2, 39495495), (3, 26330330), (5, 15798198), (6, 13165165), (10, 7899099), (13, 6076230), (15, 5266066), (26, 3038115), (30, 2633033), (39, 2025410), (65, 1215246), (67, 1178970), (78, 1012705), (130, 607623), (134, 589485), (195, 405082), (201, 392990), (335, 235794), (390, 202541), (402, 196495), (670, 117897), (871, 90690), (1005, 78598), (1742, 45345), (2010, 39299), (2613, 30230), (3023, 26130), (4355, 18138), (5226, 15115), (6046, 13065), (8710, 9069)]